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11 papers · 1 filter
Hochschild Cohomology of Cubic Surfaces
Frédéric Butin
We consider the polynomial algebra and the polynomial , where . Our aim is…
Knuth relations, tableaux and MV-cycles
Stéphane Gaussent, Peter Littelmann, An Hoa Nguyen
We give a geometric interpretation of the Knuth equivalence relations in terms of the affine Graß mann variety. The Young tableaux are seen as sequences of coweights, called galler…
Simplicity of twin tree lattices with non-trivial commutation relations
Pierre-Emmanuel Caprace, Bertrand Remy
We prove a simplicity criterion for certain twin tree lattices. It applies to all rank two Kac-Moody groups over finite fields with non-trivial commutation relations, thereby yield…
The saturation property for branching rules -- Examples
Boris Pasquier, Nicolas Ressayre
For a few pairs of reductive groups, we study the decomposition of irreducible $\hait G$-modules into -modules. In particular, we observe the saturation proper…
-Torsion Points In Finite Abelian Groups And Combinatorial Identities
Christophe Delaunay, Frédéric Jouhet
The main aim of this article is to compute all the moments of the number of -torsion elements in some type of nite abelian groups. The averages involved in these moments ar…
Coupling from the past times with ambiguities and perturbations of interacting particle systems
Jean Bérard, Didier Piau
We discuss coupling from the past techniques (CFTP) for perturbations of interacting particle systems on the d-dimensional integer lattice, with a finite set of states, within the…