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arxiv: 0907.0281 · v1 · submitted 2009-07-02 · 🧮 math.AG · math.RT

Semi-stable locus of a group compactification

classification 🧮 math.AG math.RT
keywords compactificationgrouplocussemi-stableactionadjointcalculateconnected
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In this paper, we consider the diagonal action of a connected semisimple group of adjoint type on its wonderful compactification. We show that the semi-stable locus is a union of the $G$-stable pieces and we calculate the geometric quotient.

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