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István Fáry
István Fáry (30 June 1922 – 2 November 1984) was a Hungarian-born mathematician known for his work in geometry and algebraic topology.. He proved Fáry's theorem that every planar graph has a straight-line embedding in 1948, and the Fáry–Milnor theorem lower-bounding the curvature of a nontrivial knot in 1949. Biography Fáry was born June 30, 1922, in Gyula, Hungary. After studying for a master's degree at the University of Budapest, he moved to the University of Szeged, where he earned a Ph.D. in 1947. He then studied at the Sorbonne before taking a faculty position at the University of Montreal in 1955. He moved to the University of California, Berkeley in 1958 and became a full professor in 1962. He died on November 2, 1984, in El Cerrito, California El Cerrito (Spanish language, Spanish for "The Little Hill") is a city in Contra Costa County, California, United States, and forms part of the San Francisco Bay Area. It has a population of 25,962 according to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyula, Hungary
Gyula (; ; or ) is a town in Békés County, Hungary. The town is best known for its medieval castle and a thermal bath. Ferenc Erkel, the composer of the Hungarian national anthem, and Albrecht Dürer the Elder, the father of Albrecht Dürer, were also born in Gyula. Name Gyula is named after the medieval Hungarian warlord Gyula III.Antal Papp: Magyarország (Hungary), Panoráma, Budapest, 1982, , p. 860, pp. 453-456 Gyula was also a title among the Hungarian tribes and still a common male given name. In Romanian, the town is known as or , in German as and in Turkish as . Geography Gyula is located in the Great Hungarian Plain on the River Fehér-Körös, southeast from Budapest and from the border with Romania. The (Szeged-)Békéscsaba-Gyula-Kötegyán railway line and Highway 44 also cross the town. Highway 44 is a four-lane expressway between Gyula and the county seat Békéscsaba.Magyarország autóatlasz, Dimap-Szarvas, Budapest, 2004, History Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fáry–Milnor Theorem
In the mathematical theory of knots, the Fáry–Milnor theorem, named after István Fáry and John Milnor, states that three-dimensional smooth curves with small total curvature must be unknotted. The theorem was proved independently by Fáry in 1949 and Milnor in 1950. It was later shown to follow from the existence of quadrisecants . Statement If ''K'' is any closed curve in Euclidean space that is sufficiently smooth to define the curvature κ at each of its points, and if the total absolute curvature is less than or equal to 4π, then ''K'' is an unknot, i.e.: : \text\ \oint_K , \kappa(s), \, \mathrms \le 4 \pi,\ \text\ K\ \text. The contrapositive tells us that if ''K'' is not an unknot, i.e. ''K'' is not isotopic to the circle, then the total curvature will be strictly greater than 4π. Notice that having the total curvature less than or equal to 4 is merely a sufficient condition for ''K'' to be an unknot; it is not a necessary condition In logic and mathemati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hungarian Expatriates In France
Hungarian may refer to: * Hungary, a country in Central Europe * Kingdom of Hungary, state of Hungary, existing between 1000 and 1946 * Hungarians/Magyars, ethnic groups in Hungary * Hungarian algorithm, a polynomial time algorithm for solving the assignment problem * Hungarian language, a Uralic language spoken in Hungary and all neighbouring countries * Hungarian notation, a naming convention in computer programming * Hungarian cuisine Hungarian or Magyar cuisine (Hungarian language, Hungarian: ''Magyar konyha'') is the cuisine characteristic of the nation of Hungary, and its primary ethnic group, the Hungarians, Magyars. Hungarian cuisine has been described as being the P ..., the cuisine of Hungary and the Hungarians See also * * {{disambiguation Language and nationality disambiguation pages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Paris Alumni
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geometers
A geometer is a mathematician whose area of study is the historical aspects that define geometry, instead of the analytical geometric studies that becomes conducted from geometricians. Some notable geometers and their main fields of work, chronologically listed, are: 1000 BCE to 1 BCE * Baudhayana (fl. c. 800 BC) – Euclidean geometry * Manava (c. 750 BC–690 BC) – Euclidean geometry * Thales of Miletus (c. 624 BC – c. 546 BC) – Euclidean geometry * Pythagoras (c. 570 BC – c. 495 BC) – Euclidean geometry, Pythagorean theorem * Zeno of Elea (c. 490 BC – c. 430 BC) – Euclidean geometry * Hippocrates of Chios (born c. 470 – 410 BC) – first systematically organized '' Stoicheia – Elements'' (geometry textbook) * Mozi (c. 468 BC – c. 391 BC) * Plato (427–347 BC) * Theaetetus (c. 417 BC – 369 BC) * Autolycus of Pitane (360–c. 290 BC) – astronomy, spherical geometry * Euclid (fl. 300 BC) – '' Elements'', Euclidean geometry (sometimes called t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley College Of Letters And Science Faculty
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Midd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1984 Deaths
__NOTOC__ The following is a list of notable deaths in 1984. Entries for each day are listed alphabetically by surname. A typical entry lists information in the following sequence: * Name, age, country of citizenship at birth, subsequent country of citizenship (if applicable), reason for notability, cause of death (if known), and reference. Deaths in 1984 January * January 1 ** Alexis Korner, British blues musician and broadcaster (b. 1928) ** Joaquín Rodríguez Ortega, Spanish bullfighter (b. 1903) * January 5 – Giuseppe Fava, Italian writer (b. 1925) * January 6 – Ernest Laszlo, Hungarian-American cinematographer (b. 1898) * January 7 – Alfred Kastler, French physicist, Nobel Prize laureate (b. 1902) * January 9 – Sir Deighton Lisle Ward, 4th Governor-General of Barbados (b. 1909) * January 11 – Jack La Rue, American actor (b. 1902) * January 14 ** Saad Haddad, Lebanese military officer and militia leader (b. 1936) ** Ray Kroc, American entrepreneur (b. 1902) * J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1922 Births
Events January * January 7 – Dáil Éireann (Irish Republic), Dáil Éireann, the parliament of the Irish Republic, ratifies the Anglo-Irish Treaty by 64–57 votes. * January 10 – Arthur Griffith is elected President of Dáil Éireann, the day after Éamon de Valera resigns. * January 11 – The first successful insulin treatment of diabetes is made, by Frederick Banting in Toronto. * January 15 – Michael Collins (Irish leader), Michael Collins becomes Chairman of the Provisional Government of the Irish Free State. * January 26 – Italian forces occupy Misrata, Italian Libya, Libya; the Pacification of Libya, reconquest of Libya begins. February * February 6 ** Pope Pius XI (Achille Ratti) succeeds Pope Benedict XV, to become the 259th pope. ** The Washington Naval Treaty, Five Power Naval Disarmament Treaty is signed between the United States, United Kingdom, Empire of Japan, Japan, French Third Republic, France and Kingdom of Italy, Italy. Japan returns some ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Montreal
A university () is an institution of tertiary education and research which awards academic degrees in several academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate and postgraduate programs. The first universities in Europe were established by Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2008, , p. 55f.de Ridder-Symoens, Hilde''A History of the University in Europe: Volume 1, Universities in the Midd ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Szeged
The University of Szeged () is a Public university, public research university in Szeged, Hungary. Established as the Jesuit Academy of Kolozsvár in present-day Cluj-Napoca in 1581, the institution was re-established as a university in 1872 by Emperor Franz Joseph I of Austria, Franz Joseph I. The university relocated to Szeged in 1921, making it one of the oldest research universities in Hungary. It went through numerous changes throughout the 20th century and was eventually divided into distinct independent universities. The current University of Szeged was formed in 2000 and is made up of twelve constituent Faculty (division), faculties and nineteen doctoral schools, which consist of a range of departments and research groups. Each faculty functions autonomously. In addition to these, the university also operates the Health Centre of the University of Szeged, an extensive teaching hospital responsible for Public healthcare, public regional Health care, healthcare, and three l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
