Alberto Calderon, 77; Award-Winning Mathematician

Alberto Calderon, 77, internationally known mathematician who helped explain how heat and sound waves move. Trained as an engineer in his native Argentina, Calderon moved to the University of Chicago in 1949 where he earned a doctorate in mathematics. He taught at Ohio State University and the Institute for Advanced Study in Princeton and returned to the University of Chicago, where he spent most of his career. His work has been crucial to understanding such functions as the transmission of heat, sound and electromagnetic waves. Calderon received the National Medal of Science in 1991 and the Wolf Prize, the highest honor for mathematicians, in 1989. On Thursday in Chicago.