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math.CO2019
Cyclic flats of a polymatroid
Laszlo Csirmaz
Polymatroids can be considered as "fractional matroid" where the rank function is not required to be integer valued. Many, but not every notion in matroid terminology translates na…
math.CO2019★ 2 cited
Sticky matroids and convolution
Laszlo Csirmaz
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 convo…