Oleg Viro

Oleg Janowitsch Wiro (Russian Олег Янович Виро, English transcription Oleg Viro Yanovich; born May 13, 1948 in Leningrad ) is a Russian mathematician who deals with topology and real algebraic geometry.

Life and work

Wiro his PhD (Candidate items) in 1974 at the University of Leningrad Vladimir Abramovich Rokhlin in ( Topological invariants of branched superpositions of manifolds with edges ). He was then a professor at the Leningrad State University ( since 1974 assistant professor, lecturer from 1980, 1986-1990 Professor ), where he habilitated in 1983 (Russian Ph.D., Real algebraic varieties with prescribed topological properties). Since 1986 he was also a member of the Steklov Institute in Leningrad ( Lomi ), where until 1992 he directed in 1988 the laboratory for geometry and topology. In 1992 he went to the University of California, Riverside, where he was professor of topology until 1997. From 1994 he was also a professor at Uppsala University, where he was but (as well as the mathematician Burglind Jöricke ) in 2007 was forced to resign. The withdrawal was based on disagreements within the Faculty and caused letters of protest among other things, the former president of the IMU Lennart Carleson and the President of the European Mathematical Society Ari Laptev. Since 2008 professor at the State University of New York at Stony Brook and is also still at the Steklov Institute in Saint Petersburg. He has been a visiting professor at the University of Paris VII (2000) and at the University of California, Berkeley ( 2004).

In 1975 he won the prize for young mathematicians of the St. Petersburg Mathematical Society.

Wiro led " cutting and gluing techniques " for varieties in the real algebraic geometry, with which he examined the topology and could, for example, topologically completely classify the non-singular projective curves of degree 7 (up to isotopy ). The technique is one of the building blocks of tropical geometry. With his PhD Vladimir Turajew he led a named after two invariant in topological quantum field theory.

Wiro was invited speaker at the ICM 1983 in Warsaw (Progress in the load- five years in topology of real algebraic varieties ). In 2000 he gave a plenary lecture at the European Congress of Mathematicians in Barcelona ( Dequantization of real algebraic geometry on a logarithmic paper). In 1997 he received the Swedish Göran Gustafsson prize. He is a Fellow of the American Mathematical Society.

He is married and has two children. In addition to the Russian he has Swedish citizenship.