Semibounded cohomology

Add to your list(s) Download to your calendar using vCal

• Światosław Gal (University of Wroclaw)
• Monday 17 June 2024, 16:00-16:30
• External.

If you have a question about this talk, please contact nobody.

TRHW02 - International Conference

In 2002 Polterovich proved that groups with distorted elements do not act on symplectically hyperbolic manifolds by Hamiltonian diffeomorphisms.  In 2011 Jarek Kędra and the speaker simplified the proof using boundedness property of a certain cohomology class on the group of Hamiltonian diffeomorphisms.  It took us about another ten years to reformulate Pollterovich theorem as The group of Hamiltonian diffeomorphisms of a symplectically hyperbolicmanifold carries a metric which respect to all elements are undistorted. In the talk I will explain this boundedness property and discuss various situation it is useful.    

This talk is part of the Isaac Newton Institute Seminar Series series.

This talk is included in these lists:

• All CMS events
• External
• Featured lists
• INI info aggregator
• Isaac Newton Institute Seminar Series
• School of Physical Sciences
• bld31

Note that ex-directory lists are not shown.