2013/05/13 by Michael Brandenbursky, Brandenbursky, Michael · 2 citations
Mathematics · #FOS: Mathematics #Geometric Topology (math.GT) #Symplectic Geometry (math.SG) #math.GT #math.SG
paper · pdf · doi:10.48550/arxiv.1305.2757
Now it is a part of arXiv:1405.7931
arxiv created 2014/05/30 · arxiv updated 2014/06/03
Let Σg be a closed hyperbolic surface of genus g and let Ham(Σg) be the group of Hamiltonian diffeomorphisms of Σg. The most natural word metric on this group is the autonomous metric. It has many interesting properties, most important of which is the bi-invariance of this metric. In this work we show that Ham(Σg) is unbounded with respect to this metric.