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{{For|other people with similar names|Gyula Katona (disambiguation)}}
{{For|other people with similar names|Gyula Katona (disambiguation)}}
[[Image:Gyula Katona.jpg|thumb|Gyula Katona in Erlangen, 1975.]]
[[Image:Gyula Katona.jpg|thumb|Gyula Katona in Erlangen, 1975.]]
'''Gyula O. H. Katona''' (born March 16, 1941, [[Budapest]]) is a [[Hungary|Hungarian]] [[mathematician]] known for his work in combinatorial set theory, and especially for the [[Kruskal–Katona theorem]]<ref>{{citation|first=G.O.H.|last=Katona|contribution=A theorem of finite sets|title=Theory of Graphs|editor1-first=P.|editor1-last=Erdős|editor2-first=G.|editor2-last=Katona|publisher=Akadémiai Kiadó and Academic Press|year=1968}}.</ref> and his beautiful and elegant proof of the [[Erdős–Ko–Rado theorem]] in which he discovered a new method, now called as, Katona's cycle method.<ref>{{citation
'''Gyula O. H. Katona''' (born March 16, 1941, [[Budapest]]) is a [[Hungary|Hungarian]] [[mathematician]] known for his work in combinatorial set theory, and especially for the [[Kruskal–Katona theorem]]<ref>{{citation|first=G.O.H.|last=Katona|contribution=A theorem of finite sets|title=Theory of Graphs|editor1-first=P.|editor1-last=Erdős|editor2-first=G.|editor2-last=Katona|publisher=Akadémiai Kiadó and Academic Press|year=1968}}.</ref> and his beautiful and elegant proof of the [[Erdős–Ko–Rado theorem]] in which he discovered a new method, now called Katona's cycle method.<ref>{{citation
| first = G.O.H.
| first = G.O.H.
| last = Katona
| last = Katona
Line 9: Line 9:
| year = 1972
| year = 1972
| pages = 183–184
| pages = 183–184
| doi = 10.1016/0095-8956(72)90054-8}}.</ref> Since then, this method has become a powerful tool in proving many interesting results in Extremal set theory. He is affiliated with the [[Alfréd Rényi Institute of Mathematics]] of the [[Hungarian Academy of Sciences]].
| doi = 10.1016/0095-8956(72)90054-8}}.</ref> Since then, this method has become a powerful tool in proving many interesting results in [[extremal set theory]]. He is affiliated with the [[Alfréd Rényi Institute of Mathematics]] of the [[Hungarian Academy of Sciences]].


Katona was secretary-general of the [[János Bolyai Mathematical Society]] from 1990 to 1996. In 1966 and 1968 he won the [[Grünwald Prize]], awarded by the Bolyai Society to outstanding young mathematicians, he was awarded the [[Alfréd Rényi Prize]] of the [[Hungarian Academy of Sciences]] in 1975, and the same academy awarded him the Prize of the Academy in 1989. In 2011 the Alfréd Rényi Institute, the János Bolyai Society and the Hungarian Academy of Sciences organized a conference in honor of Katona's 70th birthday.<ref>[http://www.renyi.hu/conferences/katona70/ A Conference in honor of the 70th birthday of Gyula Katona], Alfréd Rényi Institute, accessed 2011-09-07.</ref>
Katona was secretary-general of the [[János Bolyai Mathematical Society]] from 1990 to 1996. In 1966 and 1968 he won the [[Grünwald Prize]], awarded by the Bolyai Society to outstanding young mathematicians, he was awarded the [[Alfréd Rényi Prize]] of the [[Hungarian Academy of Sciences]] in 1975, and the same academy awarded him the Prize of the Academy in 1989. In 2011 the Alfréd Rényi Institute, the János Bolyai Society and the Hungarian Academy of Sciences organized a conference in honor of Katona's 70th birthday.<ref>{{Citation|url=http://www.renyi.hu/conferences/katona70/|title=A Conference to celebrate the 70th birthday of Gyula Katona|publisher=Alfréd Rényi Institute|accessdate=2013-07-01}}.</ref>


Gyula O.H. Katona is the father of [[Gyula Y. Katona]], another Hungarian mathematician with similar research interests to those of his father.
Gyula O.H. Katona is the father of [[Gyula Y. Katona]], another Hungarian mathematician with similar research interests to those of his father.

Revision as of 18:36, 1 July 2013

Gyula Katona in Erlangen, 1975.

Gyula O. H. Katona (born March 16, 1941, Budapest) is a Hungarian mathematician known for his work in combinatorial set theory, and especially for the Kruskal–Katona theorem[1] and his beautiful and elegant proof of the Erdős–Ko–Rado theorem in which he discovered a new method, now called Katona's cycle method.[2] Since then, this method has become a powerful tool in proving many interesting results in extremal set theory. He is affiliated with the Alfréd Rényi Institute of Mathematics of the Hungarian Academy of Sciences.

Katona was secretary-general of the János Bolyai Mathematical Society from 1990 to 1996. In 1966 and 1968 he won the Grünwald Prize, awarded by the Bolyai Society to outstanding young mathematicians, he was awarded the Alfréd Rényi Prize of the Hungarian Academy of Sciences in 1975, and the same academy awarded him the Prize of the Academy in 1989. In 2011 the Alfréd Rényi Institute, the János Bolyai Society and the Hungarian Academy of Sciences organized a conference in honor of Katona's 70th birthday.[3]

Gyula O.H. Katona is the father of Gyula Y. Katona, another Hungarian mathematician with similar research interests to those of his father.

References

  1. ^ Katona, G.O.H. (1968), "A theorem of finite sets", in Erdős, P.; Katona, G. (eds.), Theory of Graphs, Akadémiai Kiadó and Academic Press.
  2. ^ Katona, G.O.H. (1972), "A simple proof of the Erdös-Chao Ko-Rado theorem", Journal of Combinatorial Theory, Series B, 13: 183–184, doi:10.1016/0095-8956(72)90054-8.
  3. ^ A Conference to celebrate the 70th birthday of Gyula Katona, Alfréd Rényi Institute, retrieved 2013-07-01.

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