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A cancellation-free antipode formula (for uniform matroids) for the\n restriction-contraction matroid Hopf algebra

2016/12/13 by Eric Bucher, Jacob P. Matherne, Bucher, Eric +1
Mathematics · #05B35 (Secondary) #16T30 (Primary) #Advanced Combinatorial Mathematics #Advanced Topics in Algebra #Algebraic structures and combinatorial models #Combinatorics (math.CO) #Commutative Algebra and Its Applications #FOS: Mathematics

paper · pdf · doi:10.48550/arxiv.1612.04343

openalex publication_date 2016/12/13 · openalex created_date 2022/09/02 · openalex updated_date 2026/07/28

Abstract

In this paper, we give a cancellation-free antipode formula (for uniform\nmatroids) for the restriction-contraction matroid Hopf algebra, using the\ntechnique of splitting and merging via a sign-reversing involution. The\ncancellation-free formula expresses the antipode of uniform matroids as a sum\nover certain ordered set partitions.\n

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