# Mathematician:Gyula O. H. Katona

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## Mathematician

Hungarian mathematician best known for his work in the field of combinatorial set theory.

Proved the Erdős-Ko-Rado Theorem.

Father of Gyula Y. Katona, who works in similar fields.

## Nationality

Hungarian

## History

- Born: March 16, 1941

## Theorems and Definitions

- 1963: Kruskal-Katona Theorem (with Joseph Bernard Kruskal)

## Publications

- 1968:
*A theorem of finite sets*(in*Theory of Graphs*, co-edited with P. Erdős) - 1972:
*A simple proof of the Erdös-Chao Ko-Rado theorem*