Weak equivalence of higher-dimensional automata

10/28/2019

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by   Thomas Kahl, et al.

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This paper introduces a notion of weak equivalence for higher-dimensional automata. Weak equivalence focuses mainly on a traditional trace language and a new homology language, which captures the overall independence structure of an HDA. It is shown that weak equivalence is compatible with both the tensor product and the coproduct of HDAs and that, under certain conditions, HDAs may be reduced to weakly equivalent smaller ones by merging and collapsing cubes.