Generators for semigroup of Lipman


Altmok S., TOSUN M.

BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY, cilt.39, ss.123-135, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 39 Konu: 1
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1007/s00574-008-0075-4
  • Dergi Adı: BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY
  • Sayfa Sayıları: ss.123-135

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.