Generators for semigroup of Lipman
BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY, vol.39, no.1, pp.123-135, 2008 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 39 Issue: 1
- Publication Date: 2008
- Doi Number: 10.1007/s00574-008-0075-4
- Journal Name: BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.123-135
- Galatasaray University Affiliated: Yes
Abstract
There is a correspondence between functions in the maximal ideal of the local ring of a rational singularity and certain positive divisors supported on the exceptional fiber of a resolution of the singularity. Here we give an algorithm to obtain a generating set over Z of these divisors.