Publikation: Three results related to the half-plane property of matroids
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2025
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Algebraic Combinatorics. Centre Mersenne. 2025, 8(1), S. 1-15. eISSN 2589-5486. Verfügbar unter: doi: 10.5802/alco.399
Zusammenfassung
We settle three problems from the literature on stable and real zero polynomials and their connection to matroid theory. We disprove the weak real zero amalgamation conjecture by Schweighofer and the second author. We disprove a conjecture by Brändén and D’León by finding a relaxation of a matroid with the weak half-plane property that does not have the weak half-plane property itself. Finally, we prove that every quaternionic unimodular matroid has the half-plane property which was conjectured by Pendavingh and van Zwam.
Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
510 Mathematik
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matroids, half-plane property, real zero polynomials, hyperbolic polynomials
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KUMMER, Mario, David SAWALL, 2025. Three results related to the half-plane property of matroids. In: Algebraic Combinatorics. Centre Mersenne. 2025, 8(1), S. 1-15. eISSN 2589-5486. Verfügbar unter: doi: 10.5802/alco.399BibTex
@article{Kummer2025-03-03Three-73786, title={Three results related to the half-plane property of matroids}, year={2025}, doi={10.5802/alco.399}, number={1}, volume={8}, journal={Algebraic Combinatorics}, pages={1--15}, author={Kummer, Mario and Sawall, David} }
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