2 papers
math.DS2021
Handel's fixed point theorem: A Morse theoretical point of view
Patrice Le Calvez
Michael Handel has proved in [Ha] a fixed point theorem for an orientation preserving homeomorphism of the open unit disk, that turned out to be an efficient tool in the study of t…
math.DS2020
Torsion of instability zones for conservative twist maps on the annulus
Anna Florio, Patrice Le Calvez
For a twist map of the annulus preserving the Lebesgue measure, we give sufficient conditions to assure the existence of a set of positive measure of points with non-zero asymp…