کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4587759 1334157 2008 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The existence of the F-signature for rings with large Q-Gorenstein locus
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات اعداد جبر و تئوری
پیش نمایش صفحه اول مقاله
The existence of the F-signature for rings with large Q-Gorenstein locus
چکیده انگلیسی

We show that the F-signature of a strongly F-regular local ring of characteristic p exists in the case that the non-Q-Gorenstein locus is dimension 1, given that a certain bound on zeroth local cohomology modules holds. This bound is shown to hold for rings essentially of finite type over a field. This is the first case in which hypotheses sufficient to prove the existence of the F-signature are not readily sufficient to prove the implication that weak F-regularity implies strong F-regularity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Algebra - Volume 319, Issue 7, 1 April 2008, Pages 2994-3005