On proper coverings of Artin stacks

نویسنده

  • Martin C. Olsson
چکیده

We prove that every separated Artin stack of finite type over a noetherian base scheme admits a proper covering by a quasi–projective scheme. An application of this result is a version of the Grothendieck existence theorem for Artin stacks.

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تاریخ انتشار 2004