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for questions on geometric invariant theory (or GIT), including stability criteria and symplectic quotients.

7 votes
1 answer
670 views

Intuition for Luna's Étale Slice Theorem

I am trying to understand the intuition for Luna's Étale Slice Theorem in the affine setting over $\mathbb{C}$. Here is the setup. Let $X$ be an affine algebraic variety and $G$ a reductive group acti …