English

De Rahm cohomology of local cohomology modules

Commutative Algebra 2013-07-10 v2

Abstract

Let KK be a field of characteristic zero, R=K[X1,...,Xn]R = K[X_1,...,X_n] and let II be an ideal in RR. Let An(K)=K<X1,...,Xn,1,...,n>A_n(K) = K<X_1,...,X_n, \partial_1,..., \partial_n> be the nthn^{th} Weyl algebra over KK. By a result due to Lyubeznik the local cohomology modules HIi(R)H^i_I(R) are holonomic An(K)A_n(K)-modules for each i0i \geq 0. In this article we compute the Koszul homology modules H(1,...,n;HI(R))H_*(\partial_1,...,\partial_n ; H^*_I(R)) for certain classes of ideals.

Keywords

Cite

@article{arxiv.1302.0116,
  title  = {De Rahm cohomology of local cohomology modules},
  author = {Tony J. Puthenpurakal},
  journal= {arXiv preprint arXiv:1302.0116},
  year   = {2013}
}

Comments

Title changed. Major revision. Theorems 2, 4 removed, and a new theorem containing previous 2,4 included