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Turn graphs and extremal surfaces in free groups

By Noel Brady, Matt Clay and Max Forester

Abstract

This note provides an alternate account of Calegari's rationality theorem for stable commutator length in free groups.Comment: 8 pages, 4 figure

Topics: Mathematics - Geometric Topology, Mathematics - Group Theory, 57M07, 20F65, 20J05
Year: 2011
OAI identifier: oai:arXiv.org:1104.5221
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