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math.RT2015
On momentum images of representations and secant varieties
Elitza Hristova, Tomasz Maciazek, Valdemar V. Tsanov
Let be a connected compact semisimple group and be an irreducible unitary representation with highest weight . We study the momentum map $μ:\mathbb P(V_λ)\to\mathfrak…
math.RT2015
Geometric Invariant Theory for principal three-dimensional subgroups acting on flag varieties
Henrik Seppänen, Valdemar V. Tsanov
Let G be a semisimple complex Lie group. In this article, we study Geometric Invariant Theory on a flag variety G/B with respect to the action of a principal 3-dimensional simple s…