2 papers
math.CO2006
Lattice Polytopes and Root Systems
Nicolas Ressayre, Pierre-Louis Montagard
Consider a lattice in a real finite dimensional vector space. Here, we are interested in the lattice polytopes, that is the convex hulls of finite subsets of the lattice. Consider…
math.RT2004
About some faces of the generalized Littlewood-Richardson cone
Pierre-Louis Montagard, Nicolas Ressayre
Let G be a connected reductive algebraic group and H be a reductive closed and connected subgroup of G both defined on an algebraically closed field of characteristic zero. We cons…