2018/01/15 by Huong, Duong Thi, Quy, Pham Hung
#13A35 #13D45 #Commutative Algebra (math.AC) #FOS: Mathematics
paper · doi:10.48550/arxiv.1801.04827
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.