Róbert Szelepcsényi (; born 19 August 1966, Žilina) is a Slovak computer scientist of Hungarian descent and a member of the Faculty of Mathematics, Physics and Informatics of Comenius University in Bratislava. His results on the closure of non-deterministic space under complement, independently obtained in 1987 also by Neil Immerman (the result known as the Immerman–Szelepcsényi theorem), brought the Gödel Prize of ACM and EATCS to both of them in 1995. Scientific articles Róbert Szelepcsényi: The Method of Forced Enumeration for Nondeterministic Automata. Acta Informatica 26(3): 279-284 (1988) References Slovak computer scientists Hungarian computer scientists 20th-century Hungarian mathematicians 21st-century Hungarian mathematicians Theoretical computer scientists Comenius University alumni Gödel Prize laureates Hungarians in Slovakia Slovak people of Hungarian descent Living people 1966 births