Subalgebras of the Gerstenhaber algebra of differential operators
arXiv:1411.4968
Abstract
We construct a family of subalgebras of the Gerstenhaber algebra of differential operators. The subalgebras are labeled by subsets of the additive group that are closed under addition. Each subalgebra is invariant under the Hochschild coboundary operator.
7 pages, v2: modified Proposition 1 and Theorem 2, misprints corrected, a reference added, v3: presentation improved, title changed