On the Converse of the Theory of Groups Acting on Trees with Inversions
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In this paper we show that if G is a group acting on a graph X with inversions such that G has a presentation induced by a fundamental domain for the action of G on X, then X is a tree.
Mathematics Subject Classification (2000).20E08 20F10 20F05
Keywords.Groups acting on graphs with inversions fundamental domains quasi HNN groups
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