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New research details homology of ample groupoids and coefficient behavior

A new research paper published on arXiv explores the homology of ample groupoids, focusing on the behavior of discrete coefficients and open invariant covers. The study demonstrates that the universal coefficient theorem for ample groupoids is a discrete coefficient statement and can fail for real numbers on a Cantor set. Furthermore, the research shows that while a cover by clopen invariant subsets forces the groupoid to split, using open invariant subsets yields a Mayer-Vietoris sequence that can be computed, as exemplified by an integer action on a compactification of the integers. AI

RANK_REASON Academic paper published on arXiv detailing mathematical concepts. [lever_c_demoted from research: ic=1 ai=0.1]

Read on arXiv cs.LG →

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New research details homology of ample groupoids and coefficient behavior

COVERAGE [1]

  1. arXiv cs.LG TIER_1 English(EN) · Luciano Melodia ·

    Discrete Coefficients and Open Invariant Covers in the Homology of Ample Groupoids

    arXiv:2603.20861v2 Announce Type: replace-cross Abstract: The homology of an ample groupoid is computed from the complex of compactly supported continuous functions on the nerve. Two hypotheses routinely imposed on this complex behave in opposite ways. We show that the comparison…