Geometric algebra of projective lines
Algebraic Geometry
2010-03-11 v1
Abstract
The projective line over a field carries structure of a groupoid with a certain correspondence between objects and arrows. We discuss to what extent the field can be reconstructed from the groupoid.
Cite
@article{arxiv.1003.2095,
title = {Geometric algebra of projective lines},
author = {Anders Kock},
journal= {arXiv preprint arXiv:1003.2095},
year = {2010}
}
Comments
12 pages