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<p>We define a trivariate polynomial combining the NL-coflow and the NL-flow polynomial, which build a dual pair counting acyclic colorings of directed graphs, in the more general setting of regular oriented matroids.</p>

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A Trivariate Dichromate Polynomial for Digraphs

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月6日

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  • Winfried Hochstättler,
  • Johanna Wiehe

摘要

We define a trivariate polynomial combining the NL-coflow and the NL-flow polynomial, which build a dual pair counting acyclic colorings of directed graphs, in the more general setting of regular oriented matroids.