The homological hexagonal lemma
GEORGIAN MATHEMATICAL JOURNAL(2018)
摘要
We propose in this article a global understanding of, on the one hand, the homological perturbation theorem (HPT) and, on the other hand, of Robin Forman's theorems about the discrete vector fields (DVFs). Forman's theorems become a simple and clear consequence of the HPT. Above both subjects, the homological hexagonal lemma quite elementary.
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关键词
Homological algebra,Gauss reduction,homological perturbation,discrete vector field
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