학술논문

Notes on the Frobenius test exponents
Document Type
Working Paper
Source
Subject
Mathematics - Commutative Algebra
13A35, 13D45
Language
Abstract
In this paper we show that the Frobenius test exponent for parameter ideals of a local ring of prime characteristic is always bigger than or equal to its Hartshorne-Speiser-Lyubeznik number. Our argument is based on an isomorphism of Nagel and Schenzel on local cohomology that we will provide an elementary proof.
Comment: final version, major change in Section 2, to appear in Communication in Algebra