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Ci-dessous, les différences entre deux révisions de la page.

--- fables [2021/12/09 16:09] – kalinin0
+++ fables [2023/02/03 18:26] – kalinin0
@@ Ligne 1: / Ligne 1: @@
 ====== Séminaire "Fables Géométriques". ======
-The normal starting time of this seminar is 16.30 on Monday.
+----
+  Monday, February 6, 2023
+:00, room 6-13
+**Sergey Finashin (Ankara)**
+**“Affine Real Cubic Surfaces”**
+Abstract: (A joint work with V.Kharlamov) We prove that the space of
+affine, transversal at infinity, non-singular real cubic surfaces has 15 connected components. We give a topological criterion to distinguish them and show also how these 15 components are adjacent to each other via wall-crossing.
+----
+  Thursday, June 16, 2022
+:00, room 1-07
+**Prof.  Yakov Eliashberg (Stanford)**
+**“Topology of spaces of Legendrian knots via Algebraic K-theory”**
+Abstract: The highly non-trivial stable homotopy groups of the Waldhausen’s
+h-cobordism space inject into the homotopy groups of spaces of appropriate Legendrian submanifolds. For instance,  there is  a  homotopically non-trivial 2-parametric family of Legendrian unknots in ${\mathbb R}^{2n+1}$ for a sufficiently large $n$. This is a joint work with Thomas Kragh.
 ----