Generators for semigroup of Lipman

Altınok S., TOSUN M.

Bulletin of the Brazilian Mathematical Society, cilt.39, sa.1, ss.123-135, 2008 (SCI-Expanded) identifier

  • 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.