Work

Decomposition of log crepant birational morphisms between log terminal surfaces

Year: 1999
Type: preprint
Abstract: We prove that every log crepant birational morphism between log terminal surfaces is decomposed into log-flopping type divisorial contraction morphisms and log blow-downs. Repeating these two kinds of contractions we reach a minimal log minimal surface from any log minimal surface.
Language: English
Open Access status: green
OpenAlex ID: W3005050266
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