László Rátz
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László Rátz (9 April 1863 in
Sopron Sopron (; german: Ödenburg, ; sl, Šopron) is a city in Hungary on the Austrian border, near Lake Neusiedl/Lake Fertő. History Ancient times-13th century When the area that is today Western Hungary was a province of the Roman Empire, a ...
– 30 September 1930 in
Budapest Budapest (, ; ) is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on the Danube river; the city has an estimated population ...
) was a Hungarian
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
high school teacher best known for educating such people as
John von Neumann John von Neumann (; hu, Neumann János Lajos, ; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath. He was regarded as having perhaps the widest cove ...
and
Nobel laureate The Nobel Prizes ( sv, Nobelpriset, no, Nobelprisen) are awarded annually by the Royal Swedish Academy of Sciences, the Swedish Academy, the Karolinska Institutet, and the Norwegian Nobel Committee to individuals and organizations who make out ...
Eugene Wigner Eugene Paul "E. P." Wigner ( hu, Wigner Jenő Pál, ; November 17, 1902 – January 1, 1995) was a Hungarian-American theoretical physicist who also contributed to mathematical physics. He received the Nobel Prize in Physics in 1963 "for his con ...
. He was a legendary teacher of "Budapest-Fasori Evangélikus Gimnázium", the Budapest Lutheran Gymnasium, a famous
secondary school A secondary school describes an institution that provides secondary education and also usually includes the building where this takes place. Some secondary schools provide both '' secondary education, lower secondary education'' (ages 11 to 14) ...
in
Budapest Budapest (, ; ) is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on the Danube river; the city has an estimated population ...
in Hungary.


Biography

He was born on 9 April 1863 in
Sopron Sopron (; german: Ödenburg, ; sl, Šopron) is a city in Hungary on the Austrian border, near Lake Neusiedl/Lake Fertő. History Ancient times-13th century When the area that is today Western Hungary was a province of the Roman Empire, a ...
, a
city A city is a human settlement of notable size.Goodall, B. (1987) ''The Penguin Dictionary of Human Geography''. London: Penguin.Kuper, A. and Kuper, J., eds (1996) ''The Social Science Encyclopedia''. 2nd edition. London: Routledge. It can be def ...
in
Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croatia a ...
on the
Austria Austria, , bar, Östareich officially the Republic of Austria, is a country in the southern part of Central Europe, lying in the Eastern Alps. It is a federation of nine states, one of which is the capital, Vienna, the most populous ...
n border, near the Lake Neusiedl/Lake Fertő. His father, Ágost Rátz, was a hardware merchant and ironmonger, and his mother was Emma Töpler of Danube Swabian origin. He graduated from the Lutheran Grammar School of Sopron in 1882. The courses of study for elementary and middle school the first two years are not available. He was a student in the Hungarian royal state grammar school, "Főreáliskola in Sopron" between 1875 and 1880, now Széchenyi István Gimnázium (Sopron). From 1880 to 1882 he studied at the Sopron Lutheran High School and graduated in 1882. From 1883 to 1887 he was a student at the University of Budapest. Then he attended the Science
University of Budapest A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, th ...
from 1883 to 1887. His university studies were at the Academy of Science in Budapest until 1887. He also studied
philosophy Philosophy (from , ) is the systematized study of general and fundamental questions, such as those about existence, reason, knowledge, values, mind, and language. Such questions are often posed as problems to be studied or resolved. Some ...
at
Berlin University Humboldt-Universität zu Berlin (german: Humboldt-Universität zu Berlin, abbreviated HU Berlin) is a German public research university in the central borough of Mitte in Berlin. It was established by Frederick William III on the initiative o ...
between 4 October 1887 and 7 August 1888, and
natural science Natural science is one of the branches of science concerned with the description, understanding and prediction of natural phenomena, based on empirical evidence from observation and experimentation. Mechanisms such as peer review and repeatab ...
at Strasbourg University from 31 October 1888. He worked as a practicing
teacher A teacher, also called a schoolteacher or formally an educator, is a person who helps students to acquire knowledge, competence, or virtue, via the practice of teaching. ''Informally'' the role of teacher may be taken on by anyone (e.g. whe ...
in the Main Practising Secondary School of Budapest Science University from September 1889. He took his
university degree An academic degree is a qualification awarded to students upon successful completion of a course of study in higher education, usually at a college or university. These institutions commonly offer degrees at various levels, usually including unde ...
specializing in
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
and
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
on 28 November 1890. From 1890 he was a mathematics professor at the "Budapest-Fasori Evangélikus Gimnázium", a
German-speaking German ( ) is a West Germanic language mainly spoken in Central Europe. It is the most widely spoken and official or co-official language in Germany, Austria, Switzerland, Liechtenstein, and the Italian province of South Tyrol. It is also a ...
Lutheran High School in Városligeti fasor 17–21 in Budapest. Beginning 1 September 1890 he was employed as a substitute teacher. From 1 September 1892 until 1925, he tenured as a regular teacher. From 1909 to 1914, he served as
director Director may refer to: Literature * ''Director'' (magazine), a British magazine * ''The Director'' (novel), a 1971 novel by Henry Denker * ''The Director'' (play), a 2000 play by Nancy Hasty Music * Director (band), an Irish rock band * ''D ...
of the Gimnázium. One of his successors in this role was
Sándor Mikola Sándor is a Hungarian given name and surname. It is the Hungarian form of Alexander. It may refer to: People Given name * Sándor Apponyi (1844–1925) was a Hungarian diplomat, bibliophile, bibliographer and great book collector *Sándor Bo ...
, who was school principal from 1928–1935. Between the years of 1912–1921, he taught several students who became excellent mathematicians, physicians and chemists, including Nobel prize-winning physicist
Eugene Wigner Eugene Paul "E. P." Wigner ( hu, Wigner Jenő Pál, ; November 17, 1902 – January 1, 1995) was a Hungarian-American theoretical physicist who also contributed to mathematical physics. He received the Nobel Prize in Physics in 1963 "for his con ...
(Jenő Wigner) and mathematician and
polymath A polymath ( el, πολυμαθής, , "having learned much"; la, homo universalis, "universal human") is an individual whose knowledge spans a substantial number of subjects, known to draw on complex bodies of knowledge to solve specific pro ...
John von Neumann John von Neumann (; hu, Neumann János Lajos, ; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath. He was regarded as having perhaps the widest cove ...
(János Neumann). At the age of 11, Eugene Wigner developed an interest in mathematical problems. From 1915 through 1919 Wigner studied at the Gimnázium, where he and Von Neumann were taught by Rátz. von Neumann entered the Gimnázium in 1911. Although his father insisted he attend school at the grade level appropriate to his age, he agreed to hire private tutors to give him advanced instruction in those areas in which he had displayed an
aptitude An aptitude is a component of a competence to do a certain kind of work at a certain level. Outstanding aptitude can be considered "talent". Aptitude is inborn potential to perform certain kinds of activities, whether physical or mental, and ...
. Lászlo Rátz died on 30 September 1930 in Grünwald Sanatorium, a nursing home, in
Budapest Budapest (, ; ) is the capital and most populous city of Hungary. It is the ninth-largest city in the European Union by population within city limits and the second-largest city on the Danube river; the city has an estimated population ...
.


Commemorative plaque

An embossed marble tablet commemorates him on the wall of Budapest Lutheran Gymnasium, Budapest-Fasori Evangélikus Gimnázium. The
commemorative plaque A commemorative plaque, or simply plaque, or in other places referred to as a historical marker, historic marker, or historic plaque, is a plate of metal, ceramic, stone, wood, or other material, typically attached to a wall, stone, or other ...
of Jenő Wigner, János Neumann and János Harsányi, Budapest District VII, Városligeti Alley No 17–21, has also the names of four of the teachers of Fasori Gimnázium, Ödön Hittrich,
Sándor Mikola Sándor is a Hungarian given name and surname. It is the Hungarian form of Alexander. It may refer to: People Given name * Sándor Apponyi (1844–1925) was a Hungarian diplomat, bibliophile, bibliographer and great book collector *Sándor Bo ...
, László Rátz and János Renner.


Mathematics curriculum

László Rátz participated in the making of the
mathematics curriculum In contemporary education, mathematics education, known in Europe as the didactics or pedagogy of mathematics – is the practice of teaching, learning and carrying out scholarly research into the transfer of mathematical knowledge. Although re ...
of 1924 as well as the relevant instructions. While an active teacher, he was also the teacher-chairperson of ''Song and Music Association''. After retirement he became the executive president of ''Former Students Association''. His scientific career is significant for two reasons: on the one hand, he was a pioneer in completing the reform of teaching mathematics in secondary schools (1905–1914), and, on the other hand, he was the editor of the ''Journal of Secondary School Mathematics'' from 1896 to 1914 after Dániel Arany (1863–1945).


Editor-in-chief

Between 1894–1914 Rátz was
editor-in-chief An editor-in-chief (EIC), also known as lead editor or chief editor, is a publication's editorial leader who has final responsibility for its operations and policies. The highest-ranking editor of a publication may also be titled editor, managing ...
(Editorial Head) of the
Középiskolai Matematikai és Fizikai Lapok ''Középiskolai Matematikai és Fizikai Lapok'' 'Mathematical and Physical Journal for Secondary Schools''(''KöMaL'') is a Hungarian mathematics and physics journal for high school students. It was founded by Dániel Arany, a high school teache ...
, KöMaL, Mathematic and Physical Journal for Secondary Schools, the legendary highschool mathematics journal of Hungary. The archives of the ''High School Mathematics and Physics Journal'', known as KöMaL, a popular abbreviation of the Hungarian name "Középiskolai Matematikai és Fizikai Lapok", is a Hungarian
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
and
physics Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which r ...
journal for high school students, which has been continually published since 1894. The journal has an extraordinary collection of problems and articles, spanning more than a century and representing a significant factor in the history of Hungarian mathematics and physics. Mathematics at the start and later extended to physics, this highly professional monthly journal has survived two world wars and several political changes, and it established a worldwide reputation for Hungarian mathematics and sciences. The ''High School Mathematics Journal'' was founded in 1894 by Dániel Arany, a high school teacher of the science high school in the city of
Győr Győr ( , ; german: Raab, links=no; names of European cities in different languages: E-H#G, names in other languages) is the main city of northwest Hungary, the capital of Győr-Moson-Sopron County and Western Transdanubia, Western Transdanubia ...
. He edited the journal until 1896, when László Rátz, at that time already was a prominent teacher of the Fasori Lutheran High School, took it over from him and continued till 1914. The numbered "problems" ("Feladat" in Hungarian) were addressed to 11th and 12th-grade students, i. e. 17 to 18-year-old students.


János Bolyai Mathematical Society

The
János Bolyai Mathematical Society The János Bolyai Mathematical Society (Bolyai János Matematikai Társulat, BJMT) is the Hungarian mathematical society, named after János Bolyai, a 19th-century Hungarian mathematician, a co-discoverer of non-Euclidean geometry. It is the profes ...
(Bolyai János Matematikai Társulat, BJMT) is the Hungarian mathematical society, named after
János Bolyai János Bolyai (; 15 December 1802 – 27 January 1860) or Johann Bolyai, was a Hungarian mathematician, who developed absolute geometry—a geometry that includes both Euclidean geometry and hyperbolic geometry. The discovery of a consisten ...
, a 19th-century Hungarian mathematician, a co-discoverer of
non-Euclidean geometry In mathematics, non-Euclidean geometry consists of two geometries based on axioms closely related to those that specify Euclidean geometry. As Euclidean geometry lies at the intersection of metric geometry and affine geometry, non-Euclidean geo ...
. It is the professional society of the Hungarian mathematicians, applied mathematicians, and mathematics teachers. It was founded in 1947, as one of the two successor societies of the Mathematical and Physical Society ( "Bolyai János Matematikai és Fizikai Társulat") founded in 1891. It is a member-society of the
European Mathematical Society The European Mathematical Society (EMS) is a European organization dedicated to the development of mathematics in Europe. Its members are different mathematical societies in Europe, academic institutions and individual mathematicians. The current ...
. The European Mathematical Society (EMS) is a European organization dedicated to the development of
mathematics Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics ...
in
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
. Its members are different mathematical societies in Europe, academic institutions and individual mathematicians. The current president is Marta Sanz Solé, professor of Statistics at
University of Barcelona The University of Barcelona ( ca, Universitat de Barcelona, UB; ; es, link=no, Universidad de Barcelona) is a public university located in the city of Barcelona, Catalonia, in Spain. With 63,000 students, it is one of the biggest universities i ...
. Some of the Presidents of the Society were
György Hajós György Hajós (February 21, 1912, Budapest – March 17, 1972, Budapest) was a Hungarian mathematician who worked in group theory, graph theory, and geometry.. Biography Hajós was born February 21, 1912, in Budapest; his great-grandfathe ...
(1963–1972),
László Fejes Tóth László Fejes Tóth ( hu, Fejes Tóth László, 12 March 1915 – 17 March 2005) was a Hungarian mathematician who specialized in geometry. He proved that a lattice pattern is the most efficient way to pack centrally symmetric convex sets on th ...
(1972–1975),
Pál Turán Pál Turán (; 18 August 1910 – 26 September 1976) also known as Paul Turán, was a Hungarian mathematician who worked primarily in extremal combinatorics. He had a long collaboration with fellow Hungarian mathematician Paul Erdős, lasting ...
(1975–1976) and János Surányi (1976–1980), the names of some of them are below under
Középiskolai Matematikai és Fizikai Lapok ''Középiskolai Matematikai és Fizikai Lapok'' 'Mathematical and Physical Journal for Secondary Schools''(''KöMaL'') is a Hungarian mathematics and physics journal for high school students. It was founded by Dániel Arany, a high school teache ...
, KöMaL.
János Bolyai Mathematical Society The János Bolyai Mathematical Society (Bolyai János Matematikai Társulat, BJMT) is the Hungarian mathematical society, named after János Bolyai, a 19th-century Hungarian mathematician, a co-discoverer of non-Euclidean geometry. It is the profes ...
organizes László Rátz Congress for secondary school mathematics teachers every year and has issued the László Rátz coin since 2000. The ''High School Mathematics Journal'' was published by the ''János Bolyai Mathematical Society'' and the publication was financed by the Ministry of Education. *
János Bolyai János Bolyai (; 15 December 1802 – 27 January 1860) or Johann Bolyai, was a Hungarian mathematician, who developed absolute geometry—a geometry that includes both Euclidean geometry and hyperbolic geometry. The discovery of a consisten ...
(15 December 1802 – 27 January 1860) hu, Bolyai János, was a Hungarian
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...
, one of the founders of
non-Euclidean geometry In mathematics, non-Euclidean geometry consists of two geometries based on axioms closely related to those that specify Euclidean geometry. As Euclidean geometry lies at the intersection of metric geometry and affine geometry, non-Euclidean geo ...
— a geometry that differs from Euclidean geometry in its definition of parallel lines. The discovery of a consistent alternative geometry that might correspond to the structure of the universe helped to free mathematicians to study abstract concepts irrespective of any possible connection with the physical world. Bolyai was born in the town of Kolozsvár (Klausenburg), Principality of Transylvania (now
Cluj-Napoca ; hu, kincses város) , official_name=Cluj-Napoca , native_name= , image_skyline= , subdivision_type1 = Counties of Romania, County , subdivision_name1 = Cluj County , subdivision_type2 = Subdivisions of Romania, Status , subdivision_name2 ...
in
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
), the son of Zsuzsanna Benkő and the well-known mathematician
Farkas Bolyai Farkas Bolyai (; 9 February 1775 – 20 November 1856; also known as Wolfgang Bolyai in Germany) was a Hungarian mathematician, mainly known for his work in geometry. Biography Bolyai was born in Bolya, a village near Hermannstadt, Grand Pr ...
. He died in Marosvásárhely,
Transylvania Transylvania ( ro, Ardeal or ; hu, Erdély; german: Siebenbürgen) is a historical and cultural region in Central Europe, encompassing central Romania. To the east and south its natural border is the Carpathian Mountains, and to the west the Ap ...
,
Austrian Empire The Austrian Empire (german: link=no, Kaiserthum Oesterreich, modern spelling , ) was a Central-Eastern European multinational great power from 1804 to 1867, created by proclamation out of the realms of the Habsburgs. During its existence, ...
(now
Târgu Mureş Târgu (Romanian for "the market") starts off the names of several places in Romania: * Târgu Bujor * Târgu Cărbunești * Târgu Frumos * Târgu Gânguleşti *Târgu Jiu * Târgu Lăpuș * Târgu Logreşti * Târgu Mureș *Târgu Neamț * Târgu ...
,
Romania Romania ( ; ro, România ) is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern, and Southeast Europe, Southeastern Europe. It borders Bulgaria to the south, Ukraine to the north, Hungary to the west, S ...
).


Középiskolai Matematikai és Fizikai Lapok, KöMaL

Középiskolai Matematikai és Fizikai Lapok ''Középiskolai Matematikai és Fizikai Lapok'' 'Mathematical and Physical Journal for Secondary Schools''(''KöMaL'') is a Hungarian mathematics and physics journal for high school students. It was founded by Dániel Arany, a high school teache ...
, KöMaL, Mathematic and Physical Journal for Secondary Schools, the legendary highschool mathematics journal of Hungary. Some of the best contestants were * János Harsányi ( John Harsányi) (1920–2000) ( hu, Harsányi János Károly), was born in Budapest. As he attended high school at the Lutheran Gymnasium in Budapest, there is on the marble tablet in Fasori Gimnázium also János Harsányi's name. During high school he became one of the best problem solvers of the KöMaL, the Mathematical and Physical Monthly for Secondary Schools. Founded in 1893, this periodical is generally credited with a large share of Hungarian students' success in mathematics. He also won the first prize in the Eötvös mathematics competition for high school students. :John Harsányi became a Hungarian-
American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...
economist and
Nobel Memorial Prize in Economic Sciences The Nobel Memorial Prize in Economic Sciences, officially the Sveriges Riksbank Prize in Economic Sciences in Memory of Alfred Nobel ( sv, Sveriges riksbanks pris i ekonomisk vetenskap till Alfred Nobels minne), is an economics award administered ...
winner in 1994. He is best known for his contributions to the study of
game theory Game theory is the study of mathematical models of strategic interactions among rational agents. Myerson, Roger B. (1991). ''Game Theory: Analysis of Conflict,'' Harvard University Press, p.&nbs1 Chapter-preview links, ppvii–xi It has appli ...
and its application to economics, specifically for his developing the highly innovative analysis of games of incomplete information, so-called
Bayesian game In game theory, a Bayesian game is a game that models the outcome of player interactions using aspects of Bayesian probability. Bayesian games are notable because they allowed, for the first time in game theory, for the specification of the solut ...
s. For his work, important contributions to the use of game theory and economic reasoning in political and moral philosophy (specifically utilitarian ethics, he was a co-recipient along with John Nash and
Reinhard Selten Reinhard Justus Reginald Selten (; 5 October 1930 – 23 August 2016) was a German economist, who won the 1994 Nobel Memorial Prize in Economic Sciences (shared with John Harsanyi and John Nash). He is also well known for his work in boun ...
of the 1994 Nobel Memorial Prize in Economics. He died in
Berkeley, California Berkeley ( ) is a city on the eastern shore of San Francisco Bay in northern Alameda County, California, United States. It is named after the 18th-century Irish bishop and philosopher George Berkeley. It borders the cities of Oakland and Emer ...
,
USA The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
. *
Pál Erdős Pál is a Hungarian masculine given name, the Hungarian version of Paul. It may refer to: * Pál Almásy (1818-1882), Hungarian lawyer and politician * Pál Bedák (born 1985), Hungarian boxer * Pál Benkő (1928–2019), Hungarian-American che ...
(
Paul Erdős Paul Erdős ( hu, Erdős Pál ; 26 March 1913 – 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conjectures of the 20th century. pursued and proposed problems in ...
) (1913–1996) ( hu, Erdős Pál), was born in Budapest, he became a mathematician, he lived in the United States, United Kingdom, Israel, but died in Warsaw, Poland. His fascination with mathematics developed early—at the age of four, he could calculate in his head how many seconds a person had lived, given their age. At 16, his father introduced him to two of his lifetime favorite subjects—
infinite series In mathematics, a series is, roughly speaking, a description of the operation of adding infinitely many quantities, one after the other, to a given starting quantity. The study of series is a major part of calculus and its generalization, math ...
and
set theory Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory, as a branch of mathematics, is mostly conce ...
. During high school, Erdős became an ardent solver of the problems proposed each month in KöMaL, the Mathematical and Physical Monthly for Secondary Schools. Erdős later published several articles in it about problems in elementary plane geometry. In 1934, at the age of 21, he was awarded a doctorate in mathematics. He died in Warszaw, Poland. *
Pál Turán Pál Turán (; 18 August 1910 – 26 September 1976) also known as Paul Turán, was a Hungarian mathematician who worked primarily in extremal combinatorics. He had a long collaboration with fellow Hungarian mathematician Paul Erdős, lasting ...
(
Paul Turán Paul may refer to: *Paul (given name), a given name (includes a list of people with that name) *Paul (surname), a list of people People Christianity * Paul the Apostle (AD c.5–c.64/65), also known as Saul of Tarsus or Saint Paul, early Chri ...
) (1910–1976) ( hu, Turán Pál), was born in Budapest, he became a Hungarian a
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...
and worked primarily in
number theory Number theory (or arithmetic or higher arithmetic in older usage) is a branch of pure mathematics devoted primarily to the study of the integers and arithmetic function, integer-valued functions. German mathematician Carl Friedrich Gauss (1777 ...
. He had a long collaboration with fellow Hungarian mathematician
Paul Erdős Paul Erdős ( hu, Erdős Pál ; 26 March 1913 – 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conjectures of the 20th century. pursued and proposed problems in ...
, lasting 46 years and resulting in 28 joint papers. He received a teaching degree at the
University of Budapest A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, th ...
in 1933 and the
Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is ...
degree under
Lipót Fejér Lipót Fejér (or Leopold Fejér, ; 9 February 1880 – 15 October 1959) was a Hungarian mathematician of Jewish heritage. Fejér was born Leopold Weisz, and changed to the Hungarian name Fejér around 1900. Biography Fejér studied mathematic ...
in 1935. He became associate professor at the
University of Budapest A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, th ...
in 1945 and full professor in 1949. He died in Budapest. *
György Hajós György Hajós (February 21, 1912, Budapest – March 17, 1972, Budapest) was a Hungarian mathematician who worked in group theory, graph theory, and geometry.. Biography Hajós was born February 21, 1912, in Budapest; his great-grandfathe ...
(1912–1972) ( hu, Hajós György), was born in Budapest, he became a Hungarian
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...
who worked in
group theory In abstract algebra, group theory studies the algebraic structures known as group (mathematics), groups. The concept of a group is central to abstract algebra: other well-known algebraic structures, such as ring (mathematics), rings, field ...
,
graph theory In mathematics, graph theory is the study of ''graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of '' vertices'' (also called ''nodes'' or ''points'') which are conne ...
, and
geometry Geometry (; ) is, with arithmetic, one of the oldest branches of mathematics. It is concerned with properties of space such as the distance, shape, size, and relative position of figures. A mathematician who works in the field of geometry is c ...
. In
graph theory In mathematics, graph theory is the study of ''graphs'', which are mathematical structures used to model pairwise relations between objects. A graph in this context is made up of '' vertices'' (also called ''nodes'' or ''points'') which are conne ...
, a branch of mathematics, the
Hajós construction In graph theory, a branch of mathematics, the Hajós construction is an operation on graphs named after that may be used to construct any critical graph or any graph whose chromatic number is at least some given threshold. The construction Let ...
is an operation on graphs named after György Hajós (1961), that may be used to construct any
critical graph In graph theory, a critical graph is an undirected graph all of whose subgraphs have smaller chromatic number. In such a graph, every vertex or edge is a critical element, in the sense that its deletion would decrease the number of colors needed ...
or any graph whose
chromatic number In graph theory, graph coloring is a special case of graph labeling; it is an assignment of labels traditionally called "colors" to elements of a graph subject to certain constraints. In its simplest form, it is a way of coloring the vertices o ...
is at least some given threshold. He earned a teaching degree from the
University of Budapest A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, th ...
in 1935. He then took a position at the
Technical University of Budapest Technical may refer to: * Technical (vehicle), an improvised fighting vehicle * Technical analysis, a discipline for forecasting the future direction of prices through the study of past market data * Technical drawing, showing how something is co ...
, where he stayed from 1935 to 1949. While at the Technical University of Budapest, he earned a doctorate in 1938. He became a professor at the
Eötvös Loránd University Eötvös Loránd University ( hu, Eötvös Loránd Tudományegyetem, ELTE) is a Hungarian public research university based in Budapest. Founded in 1635, ELTE is one of the largest and most prestigious public higher education institutions in Hung ...
in 1949 and remained there until his death in 1972. Additionally he was president of the
János Bolyai Mathematical Society The János Bolyai Mathematical Society (Bolyai János Matematikai Társulat, BJMT) is the Hungarian mathematical society, named after János Bolyai, a 19th-century Hungarian mathematician, a co-discoverer of non-Euclidean geometry. It is the profes ...
from 1963 to 1972. He died in Budapest. * Eszter Klein (
Esther Szekeres Esther Szekeres ( hu, Klein Eszter; 20 February 191028 August 2005) was a Hungarian–Australian mathematician. Biography Esther Klein was born to Ignaz Klein in a Jewish family in Budapest, Kingdom of Hungary in 1910. As a young physics studen ...
) (1910–2005) ( hu, Klein Eszter, married
Esther Szekeres Esther Szekeres ( hu, Klein Eszter; 20 February 191028 August 2005) was a Hungarian–Australian mathematician. Biography Esther Klein was born to Ignaz Klein in a Jewish family in Budapest, Kingdom of Hungary in 1910. As a young physics studen ...
), was born in Budapest, she became a Hungarian-
Australia Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
n
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History On ...
with an
Erdős number The Erdős number () describes the "collaborative distance" between mathematician Paul Erdős and another person, as measured by authorship of mathematical papers. The same principle has been applied in other fields where a particular individual ...
of 1. The Erdős number describes the "collaborative distance" between mathematician
Paul Erdős Paul Erdős ( hu, Erdős Pál ; 26 March 1913 – 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conjectures of the 20th century. pursued and proposed problems in ...
and another person, as measured by authorship of mathematical papers. ''Esther Klein'' was a member of a high school student in mathematics who are interested in associating Anonymous group in Budapest,
Pál Erdős Pál is a Hungarian masculine given name, the Hungarian version of Paul. It may refer to: * Pál Almásy (1818-1882), Hungarian lawyer and politician * Pál Bedák (born 1985), Hungarian boxer * Pál Benkő (1928–2019), Hungarian-American che ...
(
Paul Erdős Paul Erdős ( hu, Erdős Pál ; 26 March 1913 – 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conjectures of the 20th century. pursued and proposed problems in ...
) ( hu, Erdős Pál),
Pál Turán Pál Turán (; 18 August 1910 – 26 September 1976) also known as Paul Turán, was a Hungarian mathematician who worked primarily in extremal combinatorics. He had a long collaboration with fellow Hungarian mathematician Paul Erdős, lasting ...
(
Paul Turán Paul may refer to: *Paul (given name), a given name (includes a list of people with that name) *Paul (surname), a list of people People Christianity * Paul the Apostle (AD c.5–c.64/65), also known as Saul of Tarsus or Saint Paul, early Chri ...
) ( hu, Turán Pál), György Szekeres (
George Szekeres George Szekeres AM FAA (; 29 May 1911 – 28 August 2005) was a Hungarian–Australian mathematician. Early years Szekeres was born in Budapest, Hungary, as Szekeres György and received his degree in chemistry at the Technical University o ...
) ( hu, Szekeres György) and with others. In 1936 she married George Szekeres and later moved to Adelaide and Sydney. She died in Adelaide in Australia. * Tibor Bakos (1909–1998) ( hu, Bakos Tibor), was born in Szeged, he became a mathematics teacher and he had specialized methods in teaching, he was an excellent expert in mathematics teaching methodology. He graduated the main secondary school in Szombathely in 1927, higher education in the Peter Pázmány University in mathematics and physics department, was admitted to the Eötvös College. They were masters of the faculty of Fejér and Joseph Kürschák. Teaching career began in Satoraljaujhely, assistant teaching position was a pious teacher of real estates high school. Bakos did well in mathematics teaching methodology, which is why in 1958, in Budapest the mathematician János Surányi called him to edit the Problems with KöMaL. He was one of the responsible editor of the High School Math Sheets (1958–1974), until his retirement. He died in Budapest. * János Surányi (1918–2006) ( hu, Surányi János), was born in Budapest, he became
Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is ...
in 1941 and professor at
University of Szeged , mottoeng = Truth. Bravery. Freedom. , established = , type = Public research university , founder = Emperor Franz Joseph I , affiliation = European University Association, Science Without Borders, Confucius Institute , budget = US$220 m ...
. Erdös Award. Professor János Surányi received his undergraduate degree in 1941 and his
Ph.D. A Doctor of Philosophy (PhD, Ph.D., or DPhil; Latin: or ') is the most common degree at the highest academic level awarded following a course of study. PhDs are awarded for programs across the whole breadth of academic fields. Because it is ...
in 1943. He began teaching at University of Szeged as an assistant in 1950 without pay. Since 1950 he has worked at Eötvös University Budapest, and since 1960 he has held the rank of full professor. The journal has been a very important factor in the popularization of mathematics, in particular of solving mathematical problems by high school students. János Surányi has served as editor-in-chief since 1970. He had significant educational, didactic and talent management activities. In 1947 Paula Soós restarted the ''Middle School Math Sheets'' and a major part of the
János Bolyai Mathematical Society The János Bolyai Mathematical Society (Bolyai János Matematikai Társulat, BJMT) is the Hungarian mathematical society, named after János Bolyai, a 19th-century Hungarian mathematician, a co-discoverer of non-Euclidean geometry. It is the profes ...
was created. He died in Budapest.


The reformer of teaching mathematics

The reform committee of mathematics declared at the Meran general assembly of nature examiners in Germany in 1905 that sciences also represent cultural values, not only practical benefits: therefore, they are worth being considered equal to linguistics as means of education. In Hungary the reform was conducted by Prof. Manó Beke. He, together with
Gusztáv Rados Gusztáv Rados (22 February 1862 in Pest–1 November 1942 in Budapest) was a Hungarian mathematician. Rados specialized in number theory, linear algebra, algebra, and differential geometry. In 1936, he was awarded the Grand Prize of the Hung ...
and László Rátz, represented Hungary in the international reform committee from 1909. László Rátz participated in congresses organized in
Cambridge Cambridge ( ) is a university city and the county town in Cambridgeshire, England. It is located on the River Cam approximately north of London. As of the 2021 United Kingdom census, the population of Cambridge was 145,700. Cambridge bec ...
and
Paris Paris () is the capital and most populous city of France, with an estimated population of 2,165,423 residents in 2019 in an area of more than 105 km² (41 sq mi), making it the 30th most densely populated city in the world in 2020. S ...
. He was granted the French ''Officer d'Académie'' in 1910. In 1906 the Mathematics Reform Committee was established in Hungary, the chairperson of which was Manó Beke, its secretary was
Sándor Mikola Sándor is a Hungarian given name and surname. It is the Hungarian form of Alexander. It may refer to: People Given name * Sándor Apponyi (1844–1925) was a Hungarian diplomat, bibliophile, bibliographer and great book collector *Sándor Bo ...
and the members included László Rátz as well. This committee performed admittedly the most productive work among the European committees. László Rátz and Sándor Mikola, as they found the changes necessary, had worked out the workable methods and curriculum of mathematics teaching. They declared that certain elements that are obtained indirectly belong to mathematics as well and they have to be confirmed in the student. The learning of mathematics has to be completed by immediate experience and lots of measuring. They also emphasized the need for mental calculation and the practice of estimating. According to their theory the students have to be encouraged to tend to know reality. They considered inevitable for the teachers to intend to form clear ideas. Finally, their brave initiatives were successful: in November 1909 Rátz and Mikola were officially permitted to teach mathematics in the Lutheran Gymnasium as they found it desirable in accordance with the reform endeavours. From the beginning he was an active participant in a worldwide effort of science and mathematics teaching education reform; from 1909 he gets official full liberty in improving educational methods in his own high school; he becomes ''Officier d'Académie'' award at a 1910 Paris congress. The objectives of this reform were the recognition of cultural and humane values of science education, besides tangible pragmatic values. According to the objectives, mathematics has important involuntarily acquirable subconscious elements that need to be enhanced in students. The teachers strived to deliver clearly articulated concepts at the voluntary, conscious level, but more importantly, learning of mathematics has to be tightly woven together with direct experience and practice, emphasizing mental calculations and practicing estimations, allowing students to acquire a subconscious knowledge of reality from experience with quantitative relations.


Eugene Wigner about his teacher László Rátz

Eugene Wigner Eugene Paul "E. P." Wigner ( hu, Wigner Jenő Pál, ; November 17, 1902 – January 1, 1995) was a Hungarian-American theoretical physicist who also contributed to mathematical physics. He received the Nobel Prize in Physics in 1963 "for his con ...
was asked in the late 1970s "Do you remember Rátz?", to which he answered: "There he is!", and pointed to a picture of Rátz on his office wall. During the years 1912–1920 Eugene Wigner was taught by László Rátz and in his acceptance speech for his
Nobel Prize The Nobel Prizes ( ; sv, Nobelpriset ; no, Nobelprisen ) are five separate prizes that, according to Alfred Nobel's will of 1895, are awarded to "those who, during the preceding year, have conferred the greatest benefit to humankind." Alfr ...
(in 1963), Dr. Eugene Wigner said:
... there were many superb teachers at the Lutheran gymnasium. But the greatest was my mathematics teacher László Rátz. Rátz was known not only throughout our gymnasium but also by the church and government hierarchy and among many of the teachers in the country schools. I still keep a photograph of Rátz in my workroom because he had every quality of a miraculous teacher: He loved teaching. He knew the subject and how to kindle interest in it. He imparted the very deepest understanding. Many gymnasium teachers had great skill, but no one could evoke the beauty of the subject like Rátz. Rátz cared deeply about mathematics as a discipline... He took special care to find his better students and to inspire them. Rátz felt so privileged to tutor a phenomenon like Neumann Jancsi that he refused any money for it... Who could know that this precocious 10-year-old would someday become a great mathematician? Somehow Rátz knew. And he discovered it very quickly. Rátz was just as nice to me and nearly as devoted as he was to Neumann. Rátz was the only gymnasium teacher to invite me into his home. There were no private lessons. But Rátz lent me many well-chosen books, which I read thoroughly and made sure to return in good condition.


References


Sources


Hungarian traditions in talent support, European Day of the Talented and Gifted, Spring 2011. Source: László Kovács.


( Hungarian).


External links


Némethné Pap Kornélia: Rátz László tanár úr
Szombathely, Berzsenyi Dániel Fõiskola Fizika Tanszék, 2006.
Rátz Tanár Úr Életműdíj
(Rátz Professor Honorary Award)
Magyar Tudományos Akadémia (Hungarian Academy of Sciences)
Handed over this year's Teacher Mr. Ratz Lifetime Achievement Awards. The award is named after Laszlo Ratz (1863–1930) was the Budapest-Fasori legendary teacher at Lutheran High School. Names of many talents (e.g.
Wigner Eugene Paul "E. P." Wigner ( hu, Wigner Jenő Pál, ; November 17, 1902 – January 1, 1995) was a Hungarian-American theoretical physicist who also contributed to mathematical physics. He received the Nobel Prize in Physics in 1963 "for his con ...
physicist, mathematician
John von Neumann John von Neumann (; hu, Neumann János Lajos, ; December 28, 1903 – February 8, 1957) was a Hungarian-American mathematician, physicist, computer scientist, engineer and polymath. He was regarded as having perhaps the widest cove ...
) scientific and technical disclosure on track for many years was the editor of Middle School Mathematics Journal, and he is due to domestic reform in mathematics education. (A díj névadója, Rátz László (1863–1930) a :hu:Budapest-Fasori Evangélikus Gimnázium, Budapest-Fasori Evangélikus Gimnázium legendás hírű tanára volt. Nevéhez számos tehetség (pl. :hu:Wigner Jenő, Wigner Jenő fizikus, :hu:Neumann János, Neumann János matematikus) műszaki és tudományos pályára állítása fűződik, éveken át a Középiskolai Matematikai Lapok szerkesztője volt, és neki is köszönhető a matematika tanítás hazai reformja.) {{DEFAULTSORT:Ratz, Laszlo 1863 births 1930 deaths Hungarian educators 19th-century Hungarian mathematicians 20th-century Hungarian mathematicians People from Sopron Hungarian people of German descent Austro-Hungarian mathematicians