- Gyula O. H. Katona
**Gyula O. H. Katona**(March 16, 1941 – ) is a Hungarianmathematician known for his work in combinatorial set theory, and especially for theKruskal–Katona theorem and his elegant proof of theErdős–Ko–Rado theorem .As of 2006 he is affiliated with 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 theGrünwald Prize , awarded by the Bolyai Society to outstanding young mathematicians, he was awarded theRényi Prize of theHungarian Academy of Sciences in 1975, and the same academy awarded him the Prize of the Academy in 1989.Gyula O. H. Katona is the father of

Gyula Y. Katona , another Hungarian mathematician with similar research interests to those of his father.**External links*** [

*http://www.renyi.hu/~ohkatona/ Katona's web site*]

* [*http://www.imdb.com/name/nm0441430/ Katona on IMDB*] , appearing as himself inN is a Number

*Wikimedia Foundation.
2010.*