Homotopy type of shellable q-complexes and their homology groups
arxiv(2024)
摘要
The theory of shellable simplicial complexes brings together combinatorics,
algebra, and topology in a remarkable way. Initially introduced by Alder for
q-simplicial complexes, recent work of Ghorpade, Pratihar, and Randrianarisoa
extends the study of shellability to q-matroid complexes and determines
singular homology groups for a subclass of these q-simplicial complexes. In
this paper, we determine the homotopy type of shellable q-simplicial
complexes. Moreover, we establish the shellability of order complexes from
lexicographically shellable q-simplicial complexes, that include the
q-matroid complexes. This results in a comprehensive determination of the
homology groups for any lexicographically shellable q-complexes.
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