Extension, deformation and categorification of pairs
arXiv:2002.11415
Abstract
In this paper, we consider associative algebras equipped with derivations. A pair consisting of an associative algebra and a distinguished derivation is called an AssDer pair. We study central extensions and formal one-parameter deformations of AssDer pairs in terms of cohomology. Finally, we define -derivations on associative -algebras and show that the category of associative -algebras with -derivations is equivalent to the category of -term -algebras with homotopy derivations.
Revised version