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Relative Vertex Asphericity

By Jens Harlander and Stephan Rosebrock
Diagrammatic reducibility DR and its generalization vertex asphericity VA are combinatorial tools developed for detecting asphericity of a 2-complex. Here we present tests for a relative version of VA that apply to pairs of 2-complexes (L,K)(L,K), where KK is a subcomplex of LL. We show that a relative weight test... Show more
January 17, 2021
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Relative Vertex Asphericity
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