John R. Stallings
American mathematician / From Wikipedia, the free encyclopedia
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John Robert Stallings Jr. (July 22, 1935 – November 24, 2008) was a mathematician known for his seminal contributions to geometric group theory and 3-manifold topology. Stallings was a Professor Emeritus in the Department of Mathematics at the University of California at Berkeley[1] where he had been a faculty member since 1967.[1] He published over 50 papers, predominantly in the areas of geometric group theory and the topology of 3-manifolds. Stallings' most important contributions include a proof, in a 1960 paper, of the Poincaré Conjecture in dimensions greater than six and a proof, in a 1971 paper, of the Stallings theorem about ends of groups.
John R. Stallings | |
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![]() 2006 photo of Stallings | |
Born | (1935-07-22)July 22, 1935 Morrilton, Arkansas, U.S. |
Died | November 24, 2008(2008-11-24) (aged 73) Berkeley, California, U.S. |
Alma mater | University of Arkansas Princeton University |
Known for | proof of Poincaré Conjecture in dimensions greater than six; Stallings theorem about ends of groups; Stallings graphs and automata |
Awards | Frank Nelson Cole Prize in Algebra (1971) |
Scientific career | |
Fields | Mathematics |
Institutions | University of California at Berkeley |
Doctoral advisor | Ralph Fox |
Doctoral students | Marc Culler Stephen M. Gersten J. Hyam Rubinstein |