Densités pondérées et fréquente hypercyclicité
Romuald Ernst
LMPA, Université du Littoral Côte d'Opale, Calais
http://ernst.r.perso.math.cnrs.fr
Date(s) : 06/04/2017 iCal
14h00 - 15h00
Weighted densities and frequent hypercyclicity
During this talk I will explain the notion of frequently hypercyclic operator then I will focus on a well-known criterion to identify such operators. I will then present a natural modification of this notion using weighted densities. I will then show that the criterion of frequent hypercyclicity makes it possible to measure much more than frequent hypercyclicity thanks to different “density scales”. This is part of a joint work with Augustin Mouze (École Centrale de Lille and Laboratoire Paul Painlevé).
https://arxiv.org/abs/1611.04368
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