Jaroslav Nešetřil

Jaroslav Nešetřil (; born 13 March 1946) is a Czech mathematician. His research areas include combinatorics (structural combinatorics, Ramsey theory), graph theory (coloring problems, sparse structures), algebra (representation of structures, categories, homomorphisms), posets (diagram and dimension problems), computer science (complexity, NP-completeness). He works at Charles University in Prague. Provided by Wikipedia