4 papers
Invariance of generalised Reynolds ideals under derived equivalences
Alexander Zimmermann
For any algebraically closed field of positive characteristic and any non negative integer Külshammer defined ideals of the centre of a symmetric -alge…
Endomorphisms of Deligne-Lusztig varieties
François Digne, Jean Michel
This paper is a following to math.RT/0410454. For a finite group of Lie type we study the endomorphisms, commuting with the group action, of a Deligne-Lusztig variety associated to…
Dewetting of Thin Viscoelastic Polymer Films on Slippery Substrates
Elie Raphael, Thomas Vilmin
Dewetting of thin polystyrene films deposited onto silicone wafers at temperatures close to the glass transition exhibits unusual dynamics and front morphologies. Here, we present…
Recurrence rate in rapidly mixing dynamical systems
Benoit Saussol
For measure preserving dynamical systems on metric spaces we study the time needed by a typical orbit to return back close to its starting point. We prove that when the decay of co…