Generators for semigroup of Lipman
Bulletin of the Brazilian Mathematical Society, cilt.39, sa.1, ss.123-135, 2008 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 39 Sayı: 1
- Basım Tarihi: 2008
- Doi Numarası: 10.1007/s00574-008-0075-4
- Dergi Adı: Bulletin of the Brazilian Mathematical Society
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.123-135
- Anahtar Kelimeler: Positive divisors, Rational surface singularities, Toric varieties
- Hacettepe Üniversitesi Adresli: Evet
Özet
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. © 2008 Springer-Verlag Berlin Heidelberg.