Lie-Rinehart cohomology and integrable connections on modules of rank one
Autor: | Eriksen, Eivind, Gustavsen, Trond Stølen |
---|---|
Rok vydání: | 2008 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | Let $k$ be an algebraically closed field of characteristic 0, let $R$ be a commutative $k$-algebra, and let $M$ be a torsion free $R$-module of rank one with a connection $\nabla$. We consider the Lie-Rinehart cohomology with values in $End_{R}(M)$ with its induced connection, and give an interpretation of this cohomology in terms of the integrable connections on $M$. When $R$ is an isolated singularity of dimension $d\geq2$, we relate the Lie-Rinehart cohomology to the topological cohomology of the link of the singularity, and when $R$ is a quasi-homogenous hypersurface of dimension two, we give a complete computation of the cohomology. Comment: 13 pages |
Databáze: | arXiv |
Externí odkaz: |