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4 papers
K-theorie equivariante des varietes de Bott-Samelson. Application a la structure multiplicative de la K-theorie equivariante des varietes de drapeaux
Matthieu Willems
We construct a basis of the equivariant -theory of Bott towers, and we describe precisely the multiplicative structure of these algebras. We deduce similar results for Bott-Same…
Cohomologie et -theorie equivariantes des tours de Bott et des varietes de drapeaux. Application au calcul de Schubert
Matthieu Willems
We determine the structure of the equivariant cohomology and -theory of Bott towers. By restriction, we obtain similar results for Bott-Samelson varieties. This results allow us…
K-theorie equivariante des varietes de drapeaux et des varietes de Bott-Samelson
Matthieu Willems
The aim of this text is to give an explicit formula for the restriction to fixed points of a basis of the equivariant K-theory of the flag varieties and of the Bott-Samelson variet…
Cohomologie equivariante des varietes de Bott-Samelson
Matthieu Willems
In this text, We compute the equivariant cohomology of Bott-Samelson varieties. Thanks to this computation, we give a new demonstration for the formulas proved by Sarah Billey for…