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Convexity of strata in diagonal pants graphs of surfaces

Geometric Topology 2011-11-07 v1

Abstract

We prove a number of convexity results for strata of the diagonal pants graph of a surface, in analogy with the extrinsic geometric properties of strata in the Weil-Petersson completion. As a consequence, we exhibit convex flat subgraphs of every possible rank inside the diagonal pants graph.

Keywords

Cite

@article{arxiv.1111.1187,
  title  = {Convexity of strata in diagonal pants graphs of surfaces},
  author = {Javier Aramayona and Cyril Lecuire and Hugo Parlier and Kenneth J. Shackleton},
  journal= {arXiv preprint arXiv:1111.1187},
  year   = {2011}
}

Comments

14 pages, 4 figures