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Hungarian mathematician and computer scientist
László "Laci" Babai (born July 20, 1950, in Budapest )[1] is a Hungarian professor of computer science and mathematics at the University of Chicago . His research focuses on computational complexity theory , algorithms , combinatorics , and finite groups , with an emphasis on the interactions between these fields.
In 1968, Babai won a gold medal at the International Mathematical Olympiad . Babai studied mathematics at Faculty of Science of the Eötvös Loránd University from 1968 to 1973, received a PhD from the Hungarian Academy of Sciences in 1975, and received a DSc from the Hungarian Academy of Sciences in 1984.[1] [2] He held a teaching position at Eötvös Loránd University since 1971; in 1987 he took joint positions as a professor in algebra at Eötvös Loránd and in computer science at the University of Chicago. In 1995, he began a joint appointment in the mathematics department at Chicago and gave up his position at Eötvös Loránd.[1]
He is the author of over 180 academic papers.[1]
His notable accomplishments include the introduction of interactive proof systems ,[3] the introduction of the term Las Vegas algorithm ,[4] and the introduction of group theoretic methods in graph isomorphism testing.[4] In November 2015, he announced a quasipolynomial time algorithm for the graph isomorphism problem .[5] [6]
He is editor-in-chief of the refereed online journal Theory of Computing .[7] Babai was also involved in the creation of the Budapest Semesters in Mathematics program and first coined the name.
Graph isomorphism in quasipolynomial time [ edit ]
After announcing the result in 2015,[6] [8] [9]
Babai presented a paper proving that the graph isomorphism problem can be solved in quasi-polynomial time
in 2016, at the ACM Symposium on Theory of Computing .[10] In response to an error discovered by Harald Helfgott , he posted an update in 2017.[11]
In 1988, Babai won the Hungarian State Prize, in 1990 he was elected as a corresponding member of the Hungarian Academy of Sciences, and in 1994 he became a full member.[1] In 1999 the Budapest University of Technology and Economics awarded him an honorary doctorate.[1]
In 1993, Babai was awarded the Gödel Prize together with Shafi Goldwasser , Silvio Micali , Shlomo Moran , and Charles Rackoff , for their papers on interactive proof systems.[15]
In 2015, he was elected[16] a fellow of the American Academy of Arts and Sciences , and won the Knuth Prize .
Babai was an invited speaker at the International Congresses of Mathematicians in Kyoto (1990), Zürich (1994, plenary talk), and Rio de Janeiro (2018).
Sources [ edit ]
copy from Lenta.ru // texnomaniya.ru, 20 ноября 2015
Опубліковано швидкий алгоритм для задачі ізоморфізму графів Archived 2017-07-03 at the Wayback Machine // Джерело: Хабрахабр, перекладено 16 грудня 2015, 06:30
References [ edit ]
^ László Babai at the Mathematics Genealogy Project
^ Babai, László; Moran, Shlomo (1988), "Arthur-Merlin games: a randomized proof system, and a hierarchy of complexity class", J. Comput. Syst. Sci. , 36 (2 ): 254–276, doi :10.1016/0022-0000(88 )90028-1 .
^ a b Babai, László (1979), Monte-Carlo algorithms in graph isomorphism testing (PDF) , Tech. Report, Université de Montréal .
^ Cho, Adrian (November 10, 2015), "Mathematician claims breakthrough in complexity theory", Science , doi :10.1126/science.aad7416
^ a b Klarreich, Erica (14 December 2015). "Landmark Algorithm Breaks 30-Year Impasse" . Quanta Magazine . Archived from the original on 2016-01-21.
^ Theory of Computing editors , retrieved 2010-07-30.
^ A Big Result On Graph Isomorphism // November 4, 2015, A Fast Graph Isomorphism Algorithm // November 11, 2015
^ Claimed Breakthrough Slays Classic Computing Problem Archived 2016-01-22 at the Wayback Machine // MIT Technology Review, by Tom Simonite on November 13, 2015
^ Babai, László (2016), "Graph Isomorphism in Quasipolynomial Time [Extended Abstract]", Proceedings of the Forty-Eighth Annual ACM Symposium on Theory of Computing (STOC '16) , New York, NY, USA: ACM, pp. 684–697, arXiv :1512.03547 , doi :10.1145/2897518.2897542 , ISBN 978-1-4503-4132-5 , S2CID 17118954
^ László Babai: Fixing the UPCC case of Split-or-Johnson , posted on 14 January 2017
^ Definition 2.3. String Isomorphism , in: Transactions on Computational Science V . Special Issue on Cognitive Knowledge Representation . Editors-in-Chief: Marina L. Gavrilova , C. J. Kenneth Tan. Editors: Yingxu Wang, Keith Chan] / Lecture Notes in Computer Science / Volume 5540, Springer Verlag , 2009
^ Coset intersection problem // The Group Properties Wiki (beta)
^ Complexity of the coset intersection problem // Theoretical Computer Science Stack Exchange, asked Sep 25 2014 at 9:43
^ 1993 Gödel Prize Archived 2015-12-08 at the Wayback Machine , ACM SIGACT , retrieved 2010-08-14.
^ American Academy of Arts and Sciences . 2015 Fellows and Their Affiliations
External links [ edit ]
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