期刊
COMMUNICATIONS IN ALGEBRA
卷 32, 期 3, 页码 819-827出版社
TAYLOR & FRANCIS INC
DOI: 10.1081/AGB-120027952
关键词
blow-up; singularities
类别
A blow-up is called a prime blow-up, if its exceptional set is a unique irreducible divisor. This article shows that an irreducible exceptional divisor appears in a prime blow-up, if and only if there are extremal functions for this divisor.
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