Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9493332 | Journal of Algebra | 2005 | 16 Pages |
Abstract
Let k be a perfect field of positive characteristic, k(t)per the perfect closure of k(t) and A=k[[X1,â¦,Xn]]. We show that for any maximal ideal n of Aâ²=k(t)perâkA, the elements in Anâ²Ë which are annihilated by the “Taylor” Hasse-Schmidt derivations with respect to the Xi form a coefficient field of Anâ²Ë.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory
Authors
M. Fernández-Lebrón, L. Narváez-Macarro,