English

Automorphisms of categories of schemes

Algebraic Geometry 2019-06-04 v1 Category Theory

Abstract

Given two schemes SS and SS', we prove that every equivalence between SchS\mathbf{Sch}_S and SchS\mathbf{Sch}_{S'} comes from a unique isomorphism between SS and SS'. This eliminates all Noetherian and finite type hypotheses from a result of Mochizuki and fully answers a programme set out by Brandenburg in a series of questions on MathOverflow in 2011.

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Cite

@article{arxiv.1906.00921,
  title  = {Automorphisms of categories of schemes},
  author = {Remy van Dobben de Bruyn},
  journal= {arXiv preprint arXiv:1906.00921},
  year   = {2019}
}

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17 pages