Sign-changed double Richardson and Schubert polynomials are covolume, and the integer cohomology ring of a variety is governed by a Lorentzian Macaulay dual generator when built from nef line bundle classes.
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Log-concavity of polynomials arising from equivariant cohomology
Sign-changed double Richardson and Schubert polynomials are covolume, and the integer cohomology ring of a variety is governed by a Lorentzian Macaulay dual generator when built from nef line bundle classes.