SEMINAR ON SYMPLECTIC AND CONTACT GEOMETRY

Université Libre de Bruxelles

First Semester 2005-2006

Monday 14:00-15:00

Room 2.NO.906

Thursday, October 6
Salle Debever (2.O7.109), 10:00-12:00
Note special day/time/room !

Felix Schlenk (ULB)
Entropie par homologie de Floer pour les flots de Reeb


Monday, October 10

Brussels-Cologne joint seminar, Universität zu Köln
Math building (Weyertal 86-90), 2nd floor (Großer Hörsaal).
Directions

  
13:00 Karl Friedrich Siburg (Dortmund)
Intersections in symplectic geometry

14:30 Chris Wendl (LMU and MIT)
Holomorphic foliations in contact 3-manifolds

Monday, October 17

Otto van Koert (ULB)
Open books for contact 5-manifolds and applications of contact homology


Monday, October 24

Federica Pasquotto (Amsterdam)
Closed characteristics on non-compact energy surfaces


Monday, October 31

Alexandru Oancea (IRMA, Strasbourg)
Théorie de Picard-Lefschetz pour les 1-formes holomorphes fermées


Monday, November 7

Brussels-Cologne joint seminar, Université Libre de Bruxelles
NO building (Campus Plaine), 9th floor (2.NO.906).
Directions

  
13:00 Grigory Mikhalkin (Toronto and IHP)
Planar log-fronts and Harnack curves

14:30 Yann Rollin (Imperial College)
Legendrian knots and monopoles

Monday, November 14

Klaus Niederkrüger (ULB)
Left-handed Dehn twists and exotic contact structures


Monday, November 21

Frédéric Bourgeois (ULB)
A long exact sequence for symplectic and contact homology


Monday, November 28

Mélanie Bertelson (ULB)
Dynamical Morse theory

The talk is about a dynamical version of Morse theory according to a problematic due to M. Gromov. We are specifically interested in the Morse inequality according to which on a manifold M, the number of critical points of a real-valued nondegenerate function is bounded below by the sum of the Betti numbers of M. In the presence of a discrete group action, and under certain hypotheses, one obtains an dynamical analog of such an inequality involving entropy functions measuring exponential growth of certain topological invariants.

Monday, December 5

Juan-Carlos Alvarez (Lille)
Area-length duality and the symplectic geometry arising from Hilbert's fourth problem


Saturday, December 10
Note special day !

Brussels-Cologne joint seminar, Universität zu Köln
Math building (Weyertal 86-90), 2nd floor (Großer Hörsaal).
Directions

  
13:00 Klaus Mohnke (HU Berlin)
Evaluation of tangencies for holomorphic curves

14:30 Frédéric Bourgeois (ULB)
Fundamental group of the space of tight contact structures on torus bundles

Monday, December 19

Fabien Ngô (ULB)
Courbes holomorphes et groupes d'homotopie des difféomorphismes hamiltoniens


Next Semester :
Second Semester 2005-2006

Maintained by Frédéric Bourgeois.