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The signed Varchenko Determinant for Complexes of Oriented Matroids

Combinatorics 2025-01-17 v3 Algebraic Geometry

Abstract

We generalize the (signed) Varchenko matrix of a hyperplane arrangement to complexes of oriented matroids and show that its determinant has a nice factorization. This extends previous results on hyperplane arrangements and oriented matroids.

Keywords

Cite

@article{arxiv.2211.13986,
  title  = {The signed Varchenko Determinant for Complexes of Oriented Matroids},
  author = {Winfried Hochstättler and Sophia Keip and Kolja Knauer},
  journal= {arXiv preprint arXiv:2211.13986},
  year   = {2025}
}

Comments

20 Pages, 3 figures

R2 v1 2026-06-28T07:12:27.726Z