English

Nagata compactification for algebraic spaces

Algebraic Geometry 2018-06-18 v2

Abstract

We prove the Nagata compactification theorem for any separated map of finite type between quasi-compact and quasi-separated algebraic spaces, generalizing earlier results of Raoult. Along the way we also prove (and use) absolute noetherian approximation for such algebraic spaces, generalizing earlier results in the case of schemes.

Keywords

Cite

@article{arxiv.0910.5008,
  title  = {Nagata compactification for algebraic spaces},
  author = {Brian Conrad and Max Lieblich and Martin Olsson},
  journal= {arXiv preprint arXiv:0910.5008},
  year   = {2018}
}

Comments

49 pages, various clarifications and bugfixes

R2 v1 2026-06-21T14:03:36.091Z