Un adjoint
Algebraic Geometry
2019-02-15 v1
Abstract
Given a scheme S and a flat morphism T \to S of finite presentation we define a surjective S-morphism to an {\'e}tale and separated S-scheme, which is universal in an obvious sense. Properties of this morphism are deduced from a thorough uses of quotients by equivalence relations whose graph is open and closed.
Cite
@article{arxiv.1902.05296,
title = {Un adjoint},
author = {Daniel Ferrand},
journal= {arXiv preprint arXiv:1902.05296},
year = {2019}
}
Comments
in French