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Arnold Ephraim Ross (August 24, 1906 – September 25, 2002) was 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 educator who founded the Ross Mathematics Program, a
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 integer-valued functions. German mathematician Carl Friedrich Gauss (1777–1855) said, "Mat ...
summer program for
gifted Intellectual giftedness is an intellectual ability significantly higher than average. It is a characteristic of children, variously defined, that motivates differences in school programming. It is thought to persist as a trait into adult life, wi ...
high 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 '' lower secondary education'' (ages 11 to 14) and ''upper seconda ...
students. He was born in Chicago, but spent his youth in
Odessa, Ukraine Odesa (also spelled Odessa) is the third most populous city and municipality in Ukraine and a major seaport and transport hub located in the south-west of the country, on the northwestern shore of the Black Sea. The city is also the administrative ...
, where he studied with Samuil Shatunovsky. Ross returned to Chicago and enrolled in
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private university, private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park, Chicago, Hyde Park neighborhood. The University of Chic ...
graduate coursework under
E. H. Moore Eliakim Hastings Moore (; January 26, 1862 – December 30, 1932), usually cited as E. H. Moore or E. Hastings Moore, was an American mathematician. Life Moore, the son of a Methodist minister and grandson of US Congressman Eliakim H. Moore, di ...
, despite his lack of formal academic training. He received his Ph.D. and married his wife, Bee, in 1931. Ross taught at several institutions including St. Louis University before becoming chair of
University of Notre Dame The University of Notre Dame du Lac, known simply as Notre Dame ( ) or ND, is a private Catholic university, Catholic research university in Notre Dame, Indiana, outside the city of South Bend, Indiana, South Bend. French priest Edward Sorin fo ...
's mathematics department in 1946. He started a teacher training program in mathematics that evolved into the Ross Mathematics Program in 1957 with the addition of high school students. The program moved with him to
Ohio State University The Ohio State University, commonly called Ohio State or OSU, is a public land-grant research university in Columbus, Ohio. A member of the University System of Ohio, it has been ranked by major institutional rankings among the best publ ...
when he became their department chair in 1963. Though forced to retire in 1976, Ross ran the summer program until 2000. He had worked with over 2,000 students during more than forty summers. The program is known as Ross's most significant work. Its attendees have since continued on to prominent research positions across the sciences. His program inspired several offshoots and was recognized by mathematicians as highly influential. Ross has received an
honorary doctorate An honorary degree is an academic degree for which a university (or other degree-awarding institution) has waived all of the usual requirements. It is also known by the Latin phrases ''honoris causa'' ("for the sake of the honour") or ''ad hon ...
and several professional association awards for his instruction and service.


Early life and career

Ross was born Arnold Ephraim Chaimovich on August 24, 1906, in
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
to Ukrainian-Jewish immigrants. He was an only child. His mother supported the family as a physical therapist. Ross returned to Odessa,
Ukraine Ukraine ( uk, Україна, Ukraïna, ) is a country in Eastern Europe. It is the second-largest European country after Russia, which it borders to the east and northeast. Ukraine covers approximately . Prior to the ongoing Russian inv ...
with his mother in 1909 for assistance from her extended family, and stayed once
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
and the Russian Revolution broke out. The two events led to widespread famine and economic woe in the region. Ross learned Russian at the behest of his mother, and developed a love of the theater and language. Ross's mother encouraged him to read, which he did often, and subscribed to a private library since Odessa had no public library. He credited his favorite uncle, an X-ray diagnostician, with introducing him to mathematics. The uncle had hired Samuil Shatunovsky to tutor his talented son, and Ross asked to join in. As money meant little due to inflation, Shatunovsky was paid to tutor the two boys with a pound of French hard candy. During this time, Ross was not taught with textbooks or lectured on geometric proofs. His geometry teacher would ask the class to prove and justify ideas on the blackboard per trial and error. Many universities were closed due to the famine, but
Odessa University Odesa I. I. Mechnykov National University ( uk, Одеський національний університет Iмені І. І. Мечникова, translit=Odeskyi natsionalnyi universytet imeni I. I. Mechnykova), located in Odesa, Ukraine, i ...
reopened and let a small group of adolescents attend, including Ross. Ross left Odessa—now part of the Ukraine—in 1922 with the intention of returning to Chicago and studying
topology In mathematics, topology (from the Greek words , and ) is concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling, and bending; that is, without closing ...
with
E. H. Moore Eliakim Hastings Moore (; January 26, 1862 – December 30, 1932), usually cited as E. H. Moore or E. Hastings Moore, was an American mathematician. Life Moore, the son of a Methodist minister and grandson of US Congressman Eliakim H. Moore, di ...
at the
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private university, private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park, Chicago, Hyde Park neighborhood. The University of Chic ...
. After negotiating his way home, he worked at a family friend's bookbinding shop and continued to learn English at the Lewis Institute. He also changed his surname from Chaimovich to Ross in 1922. Ross used his salary from a year at the shop to enroll for one term at the University of Chicago in Moore's course. Moore gave Ross special attention, knowing his untraditional background, and arranged for Ross to attend the topology class as the sole undergraduate. In Moore's teaching style, he would propose a conjecture and task the students with proving it. Students could respond with counter-conjectures that they would defend. Ross found Moore's method exciting, and his pedagogy influenced Ross's own. Ross graduated with a B.S. degree and continued his study as
Leonard Eugene Dickson Leonard Eugene Dickson (January 22, 1874 – January 17, 1954) was an American mathematician. He was one of the first American researchers in abstract algebra, in particular the theory of finite fields and classical groups, and is also reme ...
's research assistant. Ross earned a M.S. degree and finished his Ph.D. in number theory at the University of Chicago in 1931 with Dickson as his adviser. Ross's dissertation was entitled "On Representation of Integers by Indefinite Ternary Quadratic Forms". He did not pay tuition after his first quarter, which he credits to Dickson. Ross married Bertha (Bee) Halley Horecker, a singer-musician and daughter of Ross's Chicago neighbors, in 1931, received a
National Research Council National Research Council may refer to: * National Research Council (Canada), sponsoring research and development * National Research Council (Italy), scientific and technological research, Rome * National Research Council (United States), part of ...
Fellowship for 1932, and worked as a
National Research Council National Research Council may refer to: * National Research Council (Canada), sponsoring research and development * National Research Council (Italy), scientific and technological research, Rome * National Research Council (United States), part of ...
postdoctoral fellow at
California Institute of Technology The California Institute of Technology (branded as Caltech or CIT)The university itself only spells its short form as "Caltech"; the institution considers other spellings such a"Cal Tech" and "CalTech" incorrect. The institute is also occasional ...
with
Eric Temple Bell Eric Temple Bell (7 February 1883 – 21 December 1960) was a Scottish-born mathematician and science fiction writer who lived in the United States for most of his life. He published non-fiction using his given name and fiction as John Tain ...
until 1933. Ross moved back to Chicago and led the mathematics department at an experimental school started by Ph.D.s during the Great Depression, People's Junior College, where he also taught physics. Ross became an assistant professor at St. Louis University in 1935 and stayed for about 11 years. In an interview, he said he advocated for a student who became the first black woman in the South to receive a
master's degree A master's degree (from Latin ) is an academic degree awarded by universities or colleges upon completion of a course of study demonstrating mastery or a high-order overview of a specific field of study or area of professional practice.
in mathematics. This exception led the university to admit black students despite the idea's widespread unpopularity. During
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposing ...
, Ross served as a research mathematician for the
U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage o ...
. He befriended Hungarian mathematician
Gábor Szegő Gábor Szegő () (January 20, 1895 – August 7, 1985) was a Hungarian-American mathematician. He was one of the foremost mathematical analysts of his generation and made fundamental contributions to the theory of orthogonal polynomials and ...
while in
St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...
, who recommended Ross for a 1941 Brown University summer school that prepared young scientists to assist in the war, a program Ross attended. He occasionally worked on proximity fuzes for Stromberg-Carlson's laboratory from 1941 to 1945 before accepting a position as head of
University of Notre Dame The University of Notre Dame du Lac, known simply as Notre Dame ( ) or ND, is a private Catholic university, Catholic research university in Notre Dame, Indiana, outside the city of South Bend, Indiana, South Bend. French priest Edward Sorin fo ...
's mathematics department in 1946. He set out to change the school's research climate by inviting distinguished mathematicians including Paul Erdős, whom Ross made a full professor.


Ross Mathematics Program

While at Notre Dame in 1947, Ross began a mathematics program that prioritized what he described as "the act of personal discovery through observation and experimentation" for high school and junior college teachers. In 1957, the program expanded via the
National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National ...
's post- Sputnik funds for teacher retraining, and Ross let high school students attend. This expansion became the Ross Mathematics Program, a summer mathematics program for talented high school students. The program lasts eight weeks and brings students with no prior knowledge to topics such as
Gaussian integers In number theory, a Gaussian integer is a complex number whose real and imaginary parts are both integers. The Gaussian integers, with ordinary addition and multiplication of complex numbers, form an integral domain, usually written as \mathbf /ma ...
and
quadratic reciprocity In number theory, the law of quadratic reciprocity is a theorem about modular arithmetic that gives conditions for the solvability of quadratic equations modulo prime numbers. Due to its subtlety, it has many formulations, but the most standard st ...
. Though the program teaches number theory, by its Gauss-inspired motto, "Think deeply of simple things," its primary goal is to offer precollege students an intellectual experience as what he described as "a vivid apprenticeship to a life of exploration." The program is known for its intensity, and is considered America's "most rigorous number theory program." Ross was known to say, "No one leaves the program unchanged." The program usually has 40–50 first-year students, 15 junior counselors, and 15 counselors. Students are admitted by application—which includes a set of mathematical questions—or by showing "a great eagerness to learn." First-year students meet daily for lectures in elementary number theory and thrice weekly for problem seminars. They are encouraged to think like scientists and devise their own proofs and conjectures to the problems posed, which occupies most of their free time. Ross designed the daily problem sets, and many questions contain his signature directions: "Prove or disprove and salvage if possible." Successful students are asked to return as junior counselors and counselors in future summers. Junior counselors revisit the daily lectures and help first-years with their questions. They also can take advanced courses such as combinatorics and graduate seminars. Student problem sets are graded daily by the live-in counselors. The program was funded in the 1960s by a
National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National ...
(NSF) program that supported summer programs in science education, but not returning students. As NSF support fluctuates, the program has been funded by various means including gifts from donors, scholarships from businesses, a
National Security Agency The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collect ...
grant, the university, and its mathematics department. It also receives financial support from the Clay Mathematics Institute. The program grew rapidly with input from prominent mathematicians such as Ram Prakash Bambah, Hans Zassenhaus,
Thoralf Skolem Thoralf Albert Skolem (; 23 May 1887 – 23 March 1963) was a Norwegian mathematician who worked in mathematical logic and set theory. Life Although Skolem's father was a primary school teacher, most of his extended family were farmers. Skolem ...
, and
Max Dehn Max Wilhelm Dehn (November 13, 1878 – June 27, 1952) was a German mathematician most famous for his work in geometry, topology and geometric group theory. Born to a Jewish family in Germany, Dehn's early life and career took place in Germany. ...
. In the 1960s and 1970s, Ross brought mathematicians including Zassenhaus,
Kurt Mahler Kurt Mahler FRS (26 July 1903, Krefeld, Germany – 25 February 1988, Canberra, Australia) was a German mathematician who worked in the fields of transcendental number theory, diophantine approximation, ''p''-adic analysis, and the geometry of ...
, and Dijen K. Ray-Chaudhuri to teach there regularly. Ross left Notre Dame to become chair of
Ohio State University The Ohio State University, commonly called Ohio State or OSU, is a public land-grant research university in Columbus, Ohio. A member of the University System of Ohio, it has been ranked by major institutional rankings among the best publ ...
's mathematics department in 1963, and the program followed in the 1964 summer. The program briefly moved to the University of Chicago in the summers of 1975–1978 at mathematician
Felix Browder Felix Earl Browder (; July 31, 1927 – December 10, 2016) was an American mathematician known for his work in nonlinear functional analysis. He received the National Medal of Science in 1999 and was President of the American Mathematical Society ...
's invitation. The program is unadvertised and depends on personal contacts and word of mouth to propagate. It is recognized by mathematicians as one of the best mathematics programs for high school students.


Retirement and death

Ross reached his mandatory retirement from Ohio State University in 1976, when he became Professor Emeritus, but continued to run the summer program through 2000, after which he had a stroke that left him physically impaired and unable to teach. Daniel Shapiro led the program upon Ross's exit. Shapiro was a former counselor at the program. Ross received an
honorary doctorate An honorary degree is an academic degree for which a university (or other degree-awarding institution) has waived all of the usual requirements. It is also known by the Latin phrases ''honoris causa'' ("for the sake of the honour") or ''ad hon ...
from
Denison University Denison University is a private liberal arts college in Granville, Ohio. One of the earliest colleges established in the former Northwest Territory, Denison University was founded in 1831. The college was first called the Granville Literary and ...
in 1984, the 1985
Mathematics Association of America The Mathematical Association of America (MAA) is a professional society that focuses on mathematics accessible at the undergraduate level. Members include university, college, and high school teachers; graduate and undergraduate students; pure a ...
(MAA) Award for Distinguished Service, the 1998 MAA Citation for Public Service, and was named an American Association for the Advancement of Science Fellow in 1988. His teaching awards include Ohio State's Distinguished Teaching and Service Awards, and membership on the
National Science Foundation The National Science Foundation (NSF) is an independent agency of the United States government that supports fundamental research and education in all the non-medical fields of science and engineering. Its medical counterpart is the National ...
's science education advisory board. Ross helped begin similar programs in
West Germany West Germany is the colloquial term used to indicate the Federal Republic of Germany (FRG; german: Bundesrepublik Deutschland , BRD) between its formation on 23 May 1949 and the German reunification through the accession of East Germany on 3 O ...
, India, and Australia. He consulted for an Indian gifted children program in 1973, assisted in an
Australian National University The Australian National University (ANU) is a public research university located in Canberra, the capital of Australia. Its main campus in Acton encompasses seven teaching and research colleges, in addition to several national academies an ...
January summer program for talented youth based on Ross's own from 1975 to 1983, and helped start another program in Heidelberg, Germany in 1978. He had previously created other mathematics programs, including the teacher training program (before it included high school students) and another program for Columbus, Ohio
inner city The term ''inner city'' has been used, especially in the United States, as a euphemism for majority-minority lower-income residential districts that often refer to rundown neighborhoods, in a downtown or city centre area. Sociologists some ...
middle and high school students called "Horizons Unlimited" in 1970. Ross's wife, Bee, died in 1983 and left Ross in a deep depression. His colleagues said he "lived only for his summer program" in this period. He later met a French widow of a diplomat, Madeleine Green, and they married in 1990. Ross died on September 25, 2002. ''
Notices of the American Mathematical Society ''Notices of the American Mathematical Society'' is the membership journal of the American Mathematical Society (AMS), published monthly except for the combined June/July issue. The first volume appeared in 1953. Each issue of the magazine since ...
'' and ''
MAA FOCUS ''MAA FOCUS'' is the newsmagazine of the Mathematical Association of America The Mathematical Association of America (MAA) is a professional society that focuses on mathematics accessible at the undergraduate level. Members include university, ...
'' ran memorial articles on Ross. Mathematicians such as
Karl Rubin Karl Cooper Rubin (born January 27, 1956) is an American mathematician at University of California, Irvine as Thorp Professor of Mathematics. Between 1997 and 2006, he was a professor at Stanford, and before that worked at Ohio State University ...
expressed their personal debts to Ross. He did not have any children.


Legacy

Ross's biggest contribution to his field was not through his research, but through his mathematics education programs. He had run each of his summer programs from 1957 to 2000, working with over 2,000 students. His summer program graduates found roles in prestigious research positions in fields across the sciences. The Ross Program was acclaimed by mathematicians as highly influential. The Ross Program inspired many similar programs, the closest in likeness being the Program in Mathematics for Young Scientists (PROMYS) at
Boston University Boston University (BU) is a Private university, private research university in Boston, Massachusetts. The university is nonsectarian, but has a historical affiliation with the United Methodist Church. It was founded in 1839 by Methodists with ...
and the Honors Math Camp at
Southwest Texas State University Texas State University is a public research university in San Marcos, Texas. Since its establishment in 1899, the university has grown to the second largest university in the Greater Austin metropolitan area and the fifth largest university ...
. Other programs at
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private university, private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park, Chicago, Hyde Park neighborhood. The University of Chic ...
and
University of Texas at San Antonio The University of Texas at San Antonio (UTSA) is a Public university, public research university in San Antonio, Texas. With over 34,000 students across its four campuses spanning 758 acres, UTSA is the Education in San Antonio, largest universi ...
were inspired by Ross. The founders of PROMYS were Ross Program alumni, and when the Ross Program went to the University of Chicago for several years, mathematics chair Paul Sally slowly became supportive of the program and later began his own gifted students program. Informally, Ross Program and Ross's students are known as "Ross-1s" and those who study under them (including PROMYS attendees) are known as "Ross-2s". The Arnold Ross Lecture Series founded in his name in 1993 and run by the
American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...
puts mathematicians before high school audiences annually in cities across the United States. Ohio State University organized two reunion-conferences for Ross with program alumni, friends of Ross, and a series of science lectures, in 1996 and 2001.


References


External links

*
Photos of Ross

Ross Mathematics Program official website
{{DEFAULTSORT:Ross, Arnold Euphraim 1906 births 2002 deaths 20th-century American mathematicians 21st-century American mathematicians Saint Louis University mathematicians Saint Louis University faculty American people of Ukrainian-Jewish descent Ohio State University faculty University of Chicago alumni University of Notre Dame faculty