Différences

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

--- fables [2022/06/14 09:06] – 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.
 ----
@@ Ligne 15: / Ligne 24: @@
 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.
-----
-  Monday, Dec, 20th, 16h15 - 18h15
-**On the asymptotics of Arakelov invariants**
-We will discuss the asymptotics of invariants of Riemann
-surfaces motivated by Arakelov theory. These invariants play a
-fundamental role in bounds for the number of geometric torsion points on
-curves. We will show that their asymptotic behaviour in families of
-degenerating Riemann surfaces is controlled by their tropical counterparts.
 ----
   Fri 17.12.2021, 13h30, room 6-13