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Vsevolod Shevchishin
- Prelegent(ci)
- On the symplectomorphisms of rational 4-manifolds.
- Afiliacja
- Research University Higher School of Economics, Moskwa
- Termin
- 31 marca 2015 14:30
- Pokój
- p. 4070
- Seminarium
- Seminarium „Topologia algebraiczna”
Abstract. We show that every homotopically trivial symplectomorphism of a rational or ruled 4-manifold is smoothly isotopic to the identity. This allows to understand the sructure of the diffeotopy group of rational and ruled 4-manifolds.
