Yoshiharu Kohayakawa

Yoshiharu Kohayakawa (Japanese: 小早川美晴; born 1963) is a Japanese-Brazilian mathematician working on discrete mathematics and probability theory.

[1] He is known for his work on Szemerédi's regularity lemma, which he extended to sparser graphs.

[2][3] Kohayakawa was a student of Béla Bollobás at the University of Cambridge.

[4] According to Google Scholar, as of August 21, 2019, Kohayakawa's works have been cited over 3194 times, and his h-index is 33.

[5] He is a titular member of the Brazilian Academy of Sciences.