Derived Representation Schemes and Cyclic Homology
K-Theory and Homology
2013-06-28 v2 Quantum Algebra
Rings and Algebras
Representation Theory
Abstract
We describe the derived functor DRep_V(A) of the affine representation scheme Rep_V(A), parametrizing the representations of an associative k-algebra A on a finite-dimensional vector space V. We construct the characteristic maps Tr_V(A)_n: HC_n(A) \to H_n[DRep_V(A)], extending the canonical trace Tr_V(A): HC_0(A) \to k[Rep_V(A)] to the higher cyclic homology of the algebra A, and describe a related derived version of the representation functor introduced recently by M. Van den Bergh. We study various operations on the homology of DRep_V(A) induced by known operations on cyclic and Hochschild homology of A.
Cite
@article{arxiv.1112.1449,
title = {Derived Representation Schemes and Cyclic Homology},
author = {Yuri Berest and George Khachatryan and Ajay Ramadoss},
journal= {arXiv preprint arXiv:1112.1449},
year = {2013}
}
Comments
52 pages; revised version; to appear in Advances Math