Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4586947 | Journal of Algebra | 2010 | 38 Pages |
Abstract
In this paper, we study the covering theory of laura algebras. We prove that if a connected laura algebra is standard (that is, has a standard connecting component), then it has Galois coverings associated to the coverings of the connecting component. As a consequence, the first Hochschild cohomology group of a standard laura algebra vanishes if and only if it has no proper Galois coverings.
Related Topics
Physical Sciences and Engineering
Mathematics
Algebra and Number Theory