Three dimensional divisorial extremal neighborhoods
Algebraic Geometry
2009-09-29 v2
Abstract
Revised version. Proper credits added. In this paper we study divisorial extremal neighborhoods f:Y-->X, such that X is a cAn type three dimensional terminal singularity, and C=f(E) is a smooth curve, where E is the f-exceptional divisor. We view a divisorial extremal neighborhood as a one-parameter smoothing of certain surface singularities, and based on this we give a classification of such neighborhoods.
Cite
@article{arxiv.math/0309010,
title = {Three dimensional divisorial extremal neighborhoods},
author = {Nikolaos Tziolas},
journal= {arXiv preprint arXiv:math/0309010},
year = {2009}
}
Comments
37 pages