English

Convexity theorems for varieties invariant under a Borel subgroup

Symplectic Geometry 2010-11-02 v2 Algebraic Geometry

Abstract

Atiyah proved that the moment map image of the closure of an orbit of a complex torus action is convex. Brion generalized this result to actions of a complex reductive group. We extend their results to actions of a maximal solvable subgroup.

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Cite

@article{arxiv.math/0504537,
  title  = {Convexity theorems for varieties invariant under a Borel subgroup},
  author = {Victor Guillemin and Reyer Sjamaar},
  journal= {arXiv preprint arXiv:math/0504537},
  year   = {2010}
}

Comments

18 pages