Proves equivariant gamma-positivity for matroid Chow rings, giving new combinatorial interpretations and confirming a conjecture.
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Explicit formulas and generating functions are obtained for inverse Kazhdan-Lusztig and inverse Z-polynomials of fan matroids, with coefficients proven log-concave and internally zero-free.
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Equivariant gamma-positivity of matroid Chow rings
Proves equivariant gamma-positivity for matroid Chow rings, giving new combinatorial interpretations and confirming a conjecture.
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Inverse Kazhdan--Lusztig polynomials of fan matroids
Explicit formulas and generating functions are obtained for inverse Kazhdan-Lusztig and inverse Z-polynomials of fan matroids, with coefficients proven log-concave and internally zero-free.