DISCRETENESS OF F-JUMPING NUMBERS AT ISOLATED NON-Q-GORENSTEIN POINTS

被引:1
作者
Graf, Patrick [1 ]
Schwede, Karl [2 ]
机构
[1] Univ Bayreuth, Lehrstuhl Math 1, D-95440 Bayreuth, Germany
[2] Univ Utah, Dept Math, 155 S 1400 E Room 233, Salt Lake City, UT 84112 USA
基金
美国国家科学基金会;
关键词
Test ideals; F-jumping numbers; Q-Gorenstein; multiplier ideals; TEST IDEALS; MULTIPLIER IDEALS; VARIETIES; RINGS; COEFFICIENTS; THRESHOLDS; ALGEBRAS;
D O I
10.1090/proc/13739
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We show that the F-jumping numbers of a pair (X, a) in positive characteristic have no limit points whenever the symbolic Rees algebra of -K-X is finitely generated outside an isolated collection of points. We also give a characteristic zero version of this result, as well as a generalization of the Hartshorne-Speiser-Lyubeznik-Gabber stabilization theorem describing the non-F-pure locus of a variety.
引用
收藏
页码:473 / 487
页数:15
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