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Robert Edward "Rufus" Bowen (23 February 1947 – 30 July 1978) was an internationally known〔 professor in the Department of Mathematics at the University of California, Berkeley, who specialized in dynamical systems theory. Bowen's work dealt primarily with axiom A systems, but the methods he used while exploring topological entropy, symbolic dynamics, ergodic theory, Markov partitions, and invariant measures "have application far beyond the axiom A systems for which they were invented."〔 The Bowen Lectures at the University of California, Berkeley, are given in his honor. ==Life== Robert Edward Bowen was born in Vallejo, California, to Marie DeWinter Bowen, a school teacher, and Emery Bowen, a Travis Air Force Base budget officer,〔"Robert E. Bowen" (), ''San Francisco Chronicle'', 1 August 1978, p. 18〕〔Morris Hirsch: "Rufus Bowen" in Dictionary of Scientific Biography, vol. 17, supplement II, (Charles Scribner's and Sons, New York, 1990), p. 96〕 but he grew up fifteen miles away in Fairfield, California, where he attended the public schools and graduated from Armijo High School in 1964. His senior yearbook documents that he played two years of varsity basketball, was a member of the science, math, and language clubs, and was President of the senior class. During his first three years of high school, he finished 102nd, 7th, and 2nd among Californians in the MAA (Mathematical Association of America) mathematics test.〔La Mezcla, (volume 67), Armijo High School, (Fairfield, Calif., 1964), p. 211〕 In 1964, he finished 2nd in the Westinghouse (now Intel) Science Talent Search in Washington, D.C.〔La Mezcla, (volume 67), Armijo High School, (Fairfield, Calif., 1964), p. 160〕 During his senior year in high school, his first published paper appeared in the American Mathematics Monthly. As an undergraduate at the University of California, Berkeley, Bowen was a Putnam Fellow in 1964 and 1965.〔http://www.maa.org/awards/putnam.html (22 October 2009 )〕 He earned his bachelor's degree from Berkeley where he received, on 15 June 1967, the University Medal as the most distinguished graduating senior.〔 He also received the Dorothea Klumpke Roberts Prize (as top mathematics student) and the Mathematics Department Citation. At this time, Bowen was quoted as saying, "I'm slightly involved in political activity."〔"Straight-A UC Graduate Shrugs It Off", ''San Francisco Chronicle'', 16 June 1967, p. 2〕 He was "active in organizations devoted to preventing nuclear war."〔 Bowen married Carol Twito of Hayward on 6 March 1968.〔 They had no children. In 1970, Bowen completed his doctorate in Mathematics at Berkeley under Stephen Smale, and joined the faculty as assistant professor in that year. At this time he began calling himself Rufus,〔 the nickname he had been given because of his red hair and beard.〔http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Bowen.html (20 October 2009 )〕 He was an invited speaker at the 1974 International Mathematical Conference in Vancouver, British Columbia.〔 He was promoted to full professorship in 1977. Bowen's mature work dealt with dynamical systems theory, a field which Smale, Bowen's dissertation advisor, explored and broadened in the 1960s.
Bowen was just 31 years old when he died in Santa Rosa of a cerebral hemorrhage "at the start of what was to have been a vacation trip."〔 Berkeley's Mathematics Department Chairman John L. Kelley called Bowen a "remarkable, brilliant professor and superb teacher."〔 Dennis Sullivan wrote, in the issue of ''Publications mathématiques de l'Institut des hautes études scientifiques'' dedicated to Bowen's memory,
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