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Your search keyword '"Féray, Valentin"' showing total 6 results
Start Over Author "Féray, Valentin" Journal journal of algebraic combinatorics
6 results on '"Féray, Valentin"'

5. Quasi-symmetric functions as polynomial functions on Young diagrams.

Author

Aval, Jean-Christophe, Féray, Valentin, Novelli, Jean-Christophe, and Thibon, Jean-Yves

Abstract

We determine the most general form of a smooth function on Young diagrams, that is, a polynomial in the interlacing or multirectangular coordinates whose value depends only on the shape of the diagram. We prove that the algebra of such functions is isomorphic to quasi-symmetric functions, and give a noncommutative analog of this result. [ABSTRACT FROM AUTHOR]

Published
2015
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6. Linear extension sums as valuations on cones.

Author

Boussicault, Adrien, Féray, Valentin, Lascoux, Alain, and Reiner, Victor

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. [ABSTRACT FROM AUTHOR]

Published
2012
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