Sorin Popa

Sorin Popa (born March 24, 1953 ) is a Romanian - American mathematician who studies operator algebras .

Popa studied at the University of Bucharest , where he received his diploma in 1977 and his doctorate in 1983. From 1977 to 1987 he was a researcher at INCREST in Bucharest. From 1987 he was a professor at the University of California, Los Angeles . He was also a professor at the University of Geneva from 1996 to 1998 . Among other things, he was visiting scholar at MSRI , the Schrödinger Institute in Vienna , the Universities of Paris VI and VII , the IHES and the Collège de France .

Sorin deals with operator algebras ( Von Neumann algebras , C * algebras) in functional analysis, especially the theory of the sub-factors of such operator algebras and their classification. He used the long-known connections of sub-factors and von Neumann algebras to ergodic theory (dimension-preserving mappings of groups in spaces with probability measure) to prove rigidity theorems for sub-factors.

In 1990 he was invited speaker at the ICM in Kyōto (Subfactors and Classifications in von Neumann algebras). In 1995/96 he was a Guggenheim Fellow. In 2006 he gave a plenary lecture at the ICM in Madrid (Deformation and Rigidity for group actions and Von Neumann Algebras). In 2009 he received the Ostrowski Prize . From 2009 to 2011 he held the Chaire Blaise Pascal in France. In 2013 he was elected a member of the American Academy of Arts and Sciences . He is a fellow of the American Mathematical Society .

Adrian Ioana is one of his doctoral students .

Fonts

• Classification of subfactors and their endomorphisms, American Mathematical Society 1995

Web links

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