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Involutive A-infinity algebras and dihedral cohomology

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Published
<mark>Journal publication date</mark>10/2014
<mark>Journal</mark>Journal of Homotopy and Related Structures
Issue number2
Volume9
Number of pages21
Pages (from-to)317-337
Publication StatusPublished
Early online date23/04/13
<mark>Original language</mark>English

Abstract

We define and study the cohomology theories associated to A-infinity algebras and cyclic A-infinity algebras equipped with an involution, generalising dihedral cohomology to the A-infinity context. Such algebras arise, for example, as unoriented versions of topological conformal field theories. It is well known that Hochschild cohomology and cyclic cohomology govern, in a precise sense, the deformation theory of A-infinity algebras and cyclic A-infinity algebras and we give analogous results for the deformation theory in the presence of an involution. We also briefly discuss generalisations of these constructions and results to homotopy algebras over Koszul operads, such as L-infinity algebras or C-infinity algebras equipped with an involution.

Bibliographic note

Date of Acceptance: 05/04/2013 The final publication is available at Springer via http://dx.doi.org/10.1007/s40062-013-0030-y