The Schwarz-Milnor lemma for braids and area-preserving diffeomorphisms
@article{Brandenbursky2021TheSL, title={The Schwarz-Milnor lemma for braids and area-preserving diffeomorphisms}, author={Michael Brandenbursky and Michał Marcinkowski and Egor Shelukhin}, journal={Selecta Mathematica}, year={2021}, volume={28} }
We prove a number of new results on the large-scale geometry of the Lp\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$L^p$$\end{document}-metrics on the group of area-preserving diffeomorphisms of each orientable surface. Our proofs use in a key way the Fulton-MacPherson type compactification of the configuration…
References
SHOWING 1-10 OF 63 REFERENCES
The $L^p$-diameter of the group of area-preserving diffeomorphisms of $S^2$
- Mathematics
- 2016
We show that for each $p \geq 1,$ the $L^p$-metric on the group of area-preserving diffeomorphisms of the two-sphere has infinite diameter. This solves the last open case of a conjecture of…
Geodesics On The Symplectomorphism Group
- Mathematics
- 2012
Let M be a compact manifold with a symplectic form ω and consider the group $${\mathcal{D}_\omega}$$ consisting of diffeomorphisms that preserve ω. We introduce a Riemannian metric on M which is…
Bi-invariant metrics and quasi-morphisms on groups of Hamiltonian diffeomorphisms of surfaces
- Mathematics
- 2013
Let \Sigma_g be a closed orientable surface let Diff_0(\Sigma_g; area) be the identity component of the group of area-preserving diffeomorphisms of \Sigma_g. In this work we present an extension of…
Quasi-morphisms on the group of area-preserving diffeomorphisms of the 2-disk
- Mathematics
- 2012
Recently Gambaudo and Ghys proved that there exist infinitely many quasi-morphisms on the group ${\rm Diff}_\Omega^\infty (D^2, \partial D^2)$ of area-preserving diffeomorphisms of the 2-disk $D^2$.…
DIFFEOMORPHISMS OF THE 2-SPHERE
- Mathematics
- 1959
The analogue of Theorem A for the topological case was proved by H. Kneser [2]. The problem in his case seems to be of a different nature from the differentiable case. J. Munkres [3] has proved that…
A note on curvature and fundamental group
- Mathematics
- 1968
Define the growth function γ associated with a finitely generated group and a specified choice of generators {gl7 -, gp} for the group as follows (compare [9]). For each positive integer s let γ(s)…
On the autonomous metric on the group of area-preserving diffeomorphisms of the 2-disc
- Mathematics
- 2012
Let $D^2$ be the open unit disc in the Euclidean plane and let $G:= Diff(D2; area)$ be the group of smooth compactly supported area-preserving diffeomorphisms of $D^2$. We investigate the properties…
The Geometry of the Group of Symplectic Diffeomorphism
- Mathematics
- 2001
Preface.- 1 Introducing the Group.- 1.1 The origins of Hamiltonian diffeomorphisms.- 1.2 Flows and paths of diffeomorphisms.- 1.3 Classical mechanics.- 1.4 The group of Hamiltonian diffeomorphisms.-…
Anti-trees and right-angled Artin subgroups of braid groups
- Mathematics
- 2016
We prove that an arbitrary right-angled Artin group G admits a quasi-isometric group embedding into a right-angled Artin group defined by the opposite graph of a tree, and, consequently, into a pure…
Entropy and quasimorphisms
- MathematicsJournal of Modern Dynamics
- 2019
Let $S$ be a compact oriented surface. We construct homogeneous quasimorphisms on $Diff(S, area)$, on $Diff_0(S, area)$ and on $Ham(S)$ generalizing the constructions of Gambaudo-Ghys and…