INVARIANCE OF THE GERSTENHABER ALGEBRA STRUCTURE ON TATE-HOCHSCHILD COHOMOLOGY
Résumé
Keller proved in 1999 that the Gerstenhaber algebra structure on the Hochschild cohomology of an algebra is an invariant of the derived category. In this paper, we adapt his approach to show that the Gerstenhaber algebra structure on the Tate-Hochschild cohomology of an algebra is preserved under singular equivalences of Morita type with level, a notion introduced by the author in previous work.
Domaines
Mathématiques [math]
Fichier principal
Wang - 2021 - INVARIANCE OF THE GERSTENHABER ALGEBRA STRUCTURE O.pdf (569.52 Ko)
Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)