Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4597010 | Journal of Pure and Applied Algebra | 2011 | 11 Pages |
Abstract
Given a pair of G-covering functors F1:R→R1 and F0:R→R0 such that F0 is a Galois covering, the inequality for all z,t, of the dimensions of the first kind module sets under some assumptions is proved (Theorem 2.2). The result is applied to show the equality of the module variety dimensions for some special degenerations of algebras. Certain consequences for preserving wild and tame representation types by G-covering functors are also presented (Theorems 2.4 and 3.1).
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory