The Witt vector affine Grassmannian
Peter Scholze
Abstract
Peter Scholze
Abstract
(joint with Bhargav Bhatt) We prove that the space of $W(k)$-lattices in $W(k)[1/p]^n$, for a perfect field $k$ of characteristic $p$, has a natural structure as an ind-(perfect scheme). This improves on recent results of Zhu by constructing a natural ample line bundle on the space of such lattices.
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(joint with Bhargav Bhatt) We prove that the space of $W(k)$-lattices in $W(k)[1/p]^n$, for a perfect field $k$ of characteristic $p$, has a natural structure as an ind-(perfect scheme). This improves on recent results of Zhu by constructing a natural ample line bundle on the space of such lattices.
Key concepts: Mathematics, Affine transformation, Grassmannian, Pure mathematics, Space (punctuation), Affine space, Vector bundle, Vector space