Five equivalent characterizations of strong Δ-matroids are given, including novel peerless and isolated antipode conditions that yield new local exchange axioms, motivated by tropical equations from the orthogonal Grassmannian.
Tropical flag varieties
2 Pith papers cite this work. Polarity classification is still indexing.
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Studies changes in geometric properties of conv(W · a) for finite Coxeter groups W, with focus on persistent simplices, triangulations, and subdivisions.
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Characterisations of strong $\Delta$-matroids
Five equivalent characterizations of strong Δ-matroids are given, including novel peerless and isolated antipode conditions that yield new local exchange axioms, motivated by tropical equations from the orthogonal Grassmannian.
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Persistent Subdivisions of Coxeter Permutahedra
Studies changes in geometric properties of conv(W · a) for finite Coxeter groups W, with focus on persistent simplices, triangulations, and subdivisions.