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arXiv · 1909.02353

Sticky matroids and convolution

Laszlo Csirmaz
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Abstract

Motivated by the characterization of the lattice of cyclic flats of a matroid, the convolution of a ranked lattice and a discrete measure is defined, generalizing polymatroid convolution. Using the convolution technique we prove that if a matroid has a non-principal modular cut then it is not sticky. A similar statement for matroids has been proved in [8] using different technique.

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Laszlo Csirmaz. 2019-10-02. Sticky matroids and convolution. https://arxiv.org/abs/1909.02353

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