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JOURNAL OF
ALGEBRAIC
COMBINATORICS

  Editors-in-chief: C. A. Athanasiadis, T. Lam, A. Munemasa, H. Van Maldeghem
ISSN 0925-9899 (print) • ISSN 1572-9192 (electronic)
 

Linear extension sums as valuations on cones

Adrien Boussicault , Valentin Féray , Alain Lascoux and Victor Reiner

DOI: 10.1007/s10801-011-0316-2

Abstract

The geometric and algebraic theory of valuations on cones is applied to understand identities involving summing certain rational functions over the set of linear extensions of a poset.

Pages: 573–610

Keywords: keywords poset; rational function identities; valuation of cones; lattice points; affine semigroup ring; Hilbert series; total residue; root system; weight lattice

Full Text: PDF

References

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