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

--- fables [2019/11/25 13:31] – weronika
+++ fables [2020/04/26 16:45] – weronika
@@ Ligne 3: / Ligne 3: @@
 The normal starting time of this seminar is 16.30 on Monday.
+, Tuesday, April 7, 17:00, Virtual seminar (EDGE seminar) Grigory Mikhalkin (Geneva)
+https://zoom.us/j/870554816?pwd=bERmR0ZQTitYNXJ1aFZLckxzeXZJZz09
+Meeting ID: 870 554 816 Password: 014504
+**Area in real K3-surfaces**
+Real locus of a K3-surfaces is a multicomponent topological surface. The canonical class provides an area form on these components (well defined up to multiplication by a scalar). In the talk we'll explore inequalities on total areas of different components as well a link between such inequalities and a class of real algebraic curves called simple Harnack curves. Based on a joint work with Ilia Itenberg.
+----
+, Monday, March 31, 17:00, Virtual seminar, Vladimir Fock (Strasbourg)
+https://unige.zoom.us/j/737573471
+Meeting ID: 737 573 471
+**Higher measured laminations and tropical curves**
+We shall define a notion of a higher lamination - a graph embedded
+into a Riemann surface with edges coloured by generators of an affine
+Weyl group. This notion generalises the notion of the ordinary
+integral measured lamination and on the other hand of a tropical
+curve and can be constructed out of a integral Lagrangian submanifold
+of the cotangent bundle.
+----
+, Monday, March 16, 16:30, Battelle, Alexander Veselov (Loughborough University)[POSTPONED]
+**On integrability, geometrization and knots**
+I will start with a short review of Liouville integrability in relation with Thurston’s geometrization programme,
+using as the main example the geodesic flows on the 3-folds with SL(2,R)-geometry.
+A particular case of such 3-folds the modular quotient SL(2,R)/SL(2,Z), which is known, after Quillen, to be equivalent to the complement in 3-sphere of the trefoil knot. I will show that remarkable results of Ghys about modular and Lorenz knots can be naturally extended to the integrable region, where these knots are replaced by the cable knots of trefoil.
+The talk is partly based on a recent joint work with Alexey Bolsinov and Yiru Ye.
+----
+, Monday, February 17, 16:30, Battelle, Karim Adiprasito
+  (University of Copenhagen, Hebrew University of Jerusalem)
+** Algebraic geometry of the sphere at infinity, polyhedral de Rham theory and L^2 vanishing conjectures **
+I will discuss a conjecture of Singer concerning the vanishing of L^2 cohomology on non-positively curved manifolds, and relate it to Hodge theory on a Hilbert space that arises as the limit of Chow rings of certain complex varieties.
+----
@@ Ligne 16: / Ligne 68: @@
 , Monday, November 25, 16:30, Battelle, Felix Schlenk (UniNe)
-** (Real) Lagrangians submanifolds **
+** (Real) Lagrangian submanifolds **
 We start with describing how Lagrangian submanifolds of symplectic