Gyula O. H. Katona is a Hungarian

Hungary

Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

 mathematician

Mathematician

A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

 known for his work in combinatorial set theory, and especially for the Kruskal–Katona theorem

Kruskal–Katona theorem

In algebraic combinatorics, the Kruskal–Katona theorem gives a complete characterization of the f-vectors of abstract simplicial complexes. It includes as a special case the Erdős–Ko–Rado theorem and can be restated in terms of uniform hypergraphs. The theorem is named after Joseph Kruskal...

 and his elegant proof of the Erdős–Ko–Rado theorem

Erdos–Ko–Rado theorem

In combinatorics, the Erdős–Ko–Rado theorem of Paul Erdős, Chao Ko, and Richard Rado is a theorem on hypergraphs, specifically, on uniform hypergraphs of rank r.The theorem is as follows...

. he is affiliated with the Alfréd Rényi Institute of Mathematics

Alfréd Rényi Institute of Mathematics

The Alfréd Rényi Institute of Mathematics is the research institute in mathematics of the Hungarian Academy of Sciences. It was created in 1950 by Alfréd Rényi, who directed it until his death. Since its creation, the institute has been the center of mathematical research in Hungary. It received...

 of the Hungarian Academy of Sciences

Hungarian Academy of Sciences

The Hungarian Academy of Sciences is the most important and prestigious learned society of Hungary. Its seat is at the bank of the Danube in Budapest.-History:...

.

Katona was secretary-general of the János Bolyai Mathematical Society

János Bolyai Mathematical Society

The János Bolyai Mathematical Society is the Hungarian mathematical society, named after János Bolyai, a 19th century Hungarian mathematician, a co-discoverer of non-Euclidean geometry. It is the professional society of the Hungarian mathematicians, applied mathematicians, and mathematics teachers...

 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

Alfréd Rényi Prize

The Alfréd Rényi Prize is awarded biannually by the Alfréd Rényi Institute of Mathematics of the Hungarian Academy of Science in honor of founder Alfréd Rényi. By the current rules it is given to one or two fellows of the Institute in recognition of their outstanding performance in mathematics...

 of the Hungarian Academy of Sciences

Hungarian Academy of Sciences

The Hungarian Academy of Sciences is the most important and prestigious learned society of Hungary. Its seat is at the bank of the Danube in Budapest.-History:...

 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.

Gyula O.H. Katona is the father of Gyula Y. Katona

Gyula Y. Katona

Gyula Y. Katona is a Hungarian mathematician, the son of mathematician Gyula O. H. Katona. He received his Ph.D. in 1997 from Hungarian Academy of Sciences, with a dissertation entitled Paths and Cycles in Graphs and Hypergraphs under the advisement of László Lovász and András Recski, and is on...

, another Hungarian mathematician with similar research interests to those of his father.

External links

• Katona's web site
• Katona on IMDB, appearing as himself in N is a Number
  N is a Number
  N Is a Number: A Portrait of Paul Erdős is a 1993 documentary directed by George Paul Csicsery about the life of mathematician Paul Erdős....