1 citations · 1 across the 3 of their papers we have counts for
4 papers
Curve obstruction for autonomous diffeomorphisms on surfaces
Michael Khanevsky
Consider a Hamiltonian diffeomorphism on a surface. We describe several scenarios where a curve and its image provide a simple evidence that is not autonomous.
-gap between entropy-zero Hamiltonians and autonomous diffeomorphisms of surfaces
Michael Brandenbursky, Michael Khanevsky
Let be a surface equipped with an area form. There is an long standing open question by Katok, which, in particular, asks whether every entropy-zero Hamiltonian diffeomorphism…
Quasimorphisms on surfaces and continuity in the Hofer norm
Michael Khanevsky
There is a number of known constructions of quasimorphisms on Hamiltonian groups. We show that on surfaces many of these quasimorphisms are not compatible with the Hofer norm in a…
A Floer-Gysin exact sequence for Lagrangian submanifolds
Paul Biran, Michael Khanevsky
In this paper we establish a Floer-theoretical analog of the classical Gysin long exact sequence from algebraic topology for circle bundles. We study algebraic and functorial prope…