On contractible curves on normal surfaces
代数几何
2007-05-23 v1
摘要
We characterize contractible curves on proper normal algebraic surfaces in terms of complementary Weil divisors. Using this we generalize the classical criteria of Castelnuovo and Artin. As application we derive a finiteness result on homogeneous spectra defined by Weil divisors on surfaces.
引用
@article{arxiv.math/9911119,
title = {On contractible curves on normal surfaces},
author = {Stefan Schroeer},
journal= {arXiv preprint arXiv:math/9911119},
year = {2007}
}
备注
20 pages, submitted to J. Reine Angew. Math