Péter Frankl

Péter Frankl is a mathematician, street performer, columnist and educator, active in Japan. Frankl studied Mathematics at Eötvös Loránd University in Budapest and submitted his PhD thesis while still an undergraduate. He holds PhD degree from University Paris Diderot as well. He has lived in Japan since 1988, where he is a well-known personality and often appears in the media. He keeps travelling around Japan performing. Frankl won a gold medal at the International Mathematical Olympiad in 1971. He has seven joint papers with Paul Erdős, and eleven joint papers with Ronald Graham. His research is in combinatorics, especially in extremal combinatorics. He is the author of the union-closed sets conjecture.