Decomposition of log crepant birational morphisms between log terminal surfaces
Algebraic Geometry
2007-05-23 v1
Abstract
We prove that every log crepant birational morphism between log terminal surfaces is decomposed into log-flopping type divisorial contraction morphisms and log blow-downs. Repeating these two kinds of contractions we reach a minimal log minimal surface from any log minimal surface.
Cite
@article{arxiv.math/9906143,
title = {Decomposition of log crepant birational morphisms between log terminal surfaces},
author = {Shigetaka Fukuda},
journal= {arXiv preprint arXiv:math/9906143},
year = {2007}
}
Comments
4 pages, AMSTex v2.1