Explicit formulas for the inverse Z-polynomial of uniform and sparse paving matroids are derived, and the coefficients are shown to be unimodal and log-concave for sparse paving matroids.
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The inverse $Z$-polynomial of a matroid
Explicit formulas for the inverse Z-polynomial of uniform and sparse paving matroids are derived, and the coefficients are shown to be unimodal and log-concave for sparse paving matroids.