Oscar H. Ibarra, Filipino-American theoretical computer scientist

Oscar H. Ibarra is a Filipino-American theoretical computer scientist, prominent for work in automata theory, formal languages, design and analysis of algorithms and computational complexity theory. He was a Professor of the Department of Computer Science at the University of California-Santa Barbara until his retirement in 2011. Previously, he was on the faculties of UC Berkeley (1967-1969) and the University of Minnesota (1969-1990). He is currently a Distinguished Professor Emeritus at UCSB.

September 29 is the 272nd day of the year in the Gregorian calendar; 93 days remain until the end of the year.