A categorical quotient in the category of dense constructible subsets
Algebraic Geometry
2009-05-26 v1
Abstract
A. A'Campo-Neuen and J. Hausen gave an example of an algebraic torus action on an open subset of the affine four space that admits no quotient in the category of algebraic varieties. We show that this example admits a quotient in the category of dense constructible subsets and thereby answer a question of A. Bialynicki-Birula.
Keywords
Cite
@article{arxiv.0905.4010,
title = {A categorical quotient in the category of dense constructible subsets},
author = {Devrim Celik},
journal= {arXiv preprint arXiv:0905.4010},
year = {2009}
}
Comments
To appear in Colloquium Mathematicum