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Combinatorial characterization of the weight monoids of smooth affine spherical varieties
Guido Pezzini, Bart Van Steirteghem
Let G be a connected complex reductive group. A well known theorem of I. Losev's says that a smooth affine spherical G-variety X is uniquely determined by its weight monoid, which…
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Equivariant degenerations of spherical modules: part II
Stavros Argyrios Papadakis, Bart Van Steirteghem
We determine, under a certain assumption, the Alexeev-Brion moduli scheme M_S of affine spherical G-varieties with a prescribed weight monoid S. In [ arXiv:1008.0911 ] we showed th…