• András Hajnal (May 13, 1931 – July 30, 2016) was a professor of mathematics at Rutgers University and a member of the Hungarian Academy of Sciences known...
    17 KB (1,902 words) - 05:46, 20 December 2023
  • large cliques or large independent sets. It is named for Paul Erdős and András Hajnal, who first posed it as an open problem in a paper from 1977. More precisely...
    10 KB (1,324 words) - 11:20, 8 July 2024
  • Thumbnail for András Hajnal (diver)
    25 May 2020. András Hajnal at World Aquatics András Hajnal at IAT Database Diving (in German) András Hajnal at Olympics.com András Hajnal at Olympedia...
    1 KB (54 words) - 00:42, 25 November 2023
  • Austro-Hungarian soldier András Hajnal (1931–2016), Hungarian mathematician András Haklits (born 1977), Hungarian Croatian hammer thrower András Hargitay (born...
    5 KB (625 words) - 16:36, 12 November 2023
  • greater than or equal to k. The Hajnal–Szemerédi theorem, posed as a conjecture by Paul Erdős (1964) and proven by András Hajnal and Endre Szemerédi (1970)...
    19 KB (2,290 words) - 08:16, 16 July 2024
  • Notable people with Hajnal either as a surname or given name: Surname: András Hajnal (1931–2016), Hungarian mathematician János Hajnal (1913–2010), Hungarian-born...
    1 KB (141 words) - 02:57, 25 March 2024
  • Thumbnail for Erdős number
    Co-author Number of collaborations András Sárközy 62 András Hajnal 56 Ralph Faudree 50 Richard Schelp 42 Cecil C. Rousseau 35 Vera T. Sós 35 Alfréd Rényi...
    33 KB (3,609 words) - 18:56, 30 August 2024
  • certain kind of large cardinal number introduced by Paul Erdős and András Hajnal (1958). A cardinal κ {\displaystyle \kappa } is called α {\displaystyle...
    4 KB (445 words) - 06:39, 25 July 2024
  • geometry and differential topology (head: András Némethi) Algebraic Logic (head: Hajnal Andréka) Analysis (head: András Kroó) Combinatorics and discrete mathematics...
    6 KB (521 words) - 12:25, 5 October 2023
  • Thumbnail for Béla Bollobás
    ISBN 978-0521655774,doi:10.1017/CBO9781139168472. with Alan Baker, András Hajnal (ed.): A tribute to Paul Erdös. Cambridge University Press 1990 doi:10...
    16 KB (1,677 words) - 23:21, 12 August 2024
  • Support. Past directors have included Fred S. Roberts, Daniel Gorenstein, András Hajnal, and Rebecca N. Wright. DIMACS sponsors implementation challenges to...
    3 KB (250 words) - 16:57, 27 April 2024
  • Thumbnail for James Earl Baumgartner
    {\displaystyle \aleph _{1}} points in every open interval). With András Hajnal he proved the Baumgartner–Hajnal theorem, which states that the partition relation ω...
    5 KB (471 words) - 13:20, 21 April 2024
  • Matthew Foreman Abraham Fraenkel Gottlob Frege Moti Gitik Kurt Gödel András Hajnal Felix Hausdorff Steve Jackson Thomas Jech Ronald Jensen Akihiro Kanamori...
    9 KB (448 words) - 16:05, 3 August 2022
  • Thumbnail for Paul Erdős
    frequent collaborators include Hungarian mathematicians András Sárközy (62 papers) and András Hajnal (56 papers), and American mathematician Ralph Faudree...
    50 KB (5,338 words) - 08:57, 13 September 2024
  • Thumbnail for ELTE Faculty of Science
    Geőcze, mathematician George Grätzer, mathematician András Gyárfás, mathematician András Hajnal, mathematician György Hevessy, chemist John Horvath,...
    23 KB (1,810 words) - 04:41, 15 September 2024
  • Thumbnail for List of people by Erdős number
    Gruber Branko Grünbaum Hansraj Gupta Richard K. Guy Michael Guy András Gyárfás András Hajnal Gábor Halász Haim Hanani Frank Harary Zdeněk Hedrlín Hans Heilbronn...
    60 KB (5,759 words) - 23:37, 10 September 2024
  • conjecture on equitable colorings proven in 1970 by András Hajnal and Endre Szemerédi and now known as the Hajnal–Szemerédi theorem. A conjecture that would have...
    13 KB (1,430 words) - 03:58, 25 May 2024
  • includes the proof of the Dinitz conjecture. In set theory, he proved with András Hajnal that if ℵω1 is a strong limit cardinal, then 2 ℵ ω 1 < ℵ ( 2 ℵ 1 ) +...
    2 KB (267 words) - 23:26, 21 April 2024
  • Thumbnail for Half graph
    same vertices. The name was given to these graphs by Paul Erdős and András Hajnal. To define the half graph on 2 n {\displaystyle 2n} vertices u 1 , …...
    9 KB (1,203 words) - 02:38, 29 July 2024
  • International Mathematical Olympiad in 1971. His Ph.D. advisor at Eötvös was András Hajnal, and he has two joint papers with Paul Erdős. He received the Paul Erdős...
    4 KB (243 words) - 22:58, 22 April 2024
  • replace T {\displaystyle T} by a graph with cycles. As Paul Erdős and András Hajnal have shown, there exist graphs with arbitrarily large chromatic number...
    5 KB (481 words) - 23:08, 11 January 2024
  • editors: Miklós Ajtai, László Babai, József Beck, András Frank, Péter Frankl, Zoltán Füredi, András Hajnal, Gyula Katona, László Lovász, László Pyber, Alexander...
    5 KB (412 words) - 13:06, 29 April 2023
  • Thumbnail for Vera T. Sós
    Sós began the weekly Hajnal–Sós seminar at the Mathematical Institute of the Hungarian Academy for Science with András Hajnal. The seminar is considered...
    9 KB (887 words) - 12:06, 9 April 2024
  • (Alternate Assessor 1979–1983) Petr Hájek (First Vice President 1995–1999) András Hajnal (Second Vice President 1983–1987) Rudolf Haller (Assessor 2004–2007)...
    18 KB (1,683 words) - 05:22, 6 April 2024
  • advance 33 Peter Waterfield  Great Britain 317.31 33 did not advance 34 András Hajnal  Hungary 316.14 34 did not advance 35 Luis Villarroel  Venezuela 309...
    9 KB (240 words) - 02:03, 5 February 2023
  • Thumbnail for List of Rutgers University people
    founding chairman of the United States of America Mathematical Olympiad András Hajnal (1931–2016)— professor of mathematics Henryk Iwaniec, professor of mathematics...
    95 KB (10,601 words) - 23:05, 12 September 2024
  • Thumbnail for List of members of the National Assembly of Hungary (2022–2026)
    (Fidesz) (age 86 in 2022) János Fónagy (Fidesz) (age 80 in 2023) Miklós Hajnal (Momentum) (age 27 in 2022) Jobbik, MSZP, DK, LMP, Dialogue, Momentum and...
    82 KB (386 words) - 09:03, 14 June 2024
  • 2012) May 10 – M. Chidananda Murthy, Indian historian (d. 2020) May 13 András Hajnal, Hungarian mathematician (d. 2016) Jim Jones, American People's Temple...
    69 KB (6,805 words) - 17:06, 13 September 2024
  • I". Sets, graphs, and numbers: a birthday salute to Vera T. Sós and András Hajnal. Colloquia mathematica Societatis János Bolyai. pp. 97–117. Bialostocki...
    14 KB (1,185 words) - 05:25, 23 July 2024
  • get the same f-value). Erdős & Rado (1956). Erdős, Hajnal & Rado (1965). Erdős, Paul; Hajnal, András; Máté, Attila; Rado, Richard (1984), Combinatorial...
    3 KB (289 words) - 17:40, 11 September 2024