I would like to understand stacks, but the general theory seems pretty abstract to me and I would be happy to limit myself to the case of a quotient stack $[X/G]$.
Are there introductory notes that focus on such stacks ?
2026-03-25 12:13:13.1774440793
Reference for quotient stacks
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You may look at the lecture notes on the website of Michael Groechenig.