Research output: Contribution to journal › Article › peer-review
GERSTENHABER BRACKET ON THE HOCHSCHILD COHOMOLOGY VIA AN ARBITRARY RESOLUTION. / Volkov, Yury .
In: Proceedings of the Edinburgh Mathematical Society, Vol. 62, No. 3, 01.08.2019, p. 817-836.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - GERSTENHABER BRACKET ON THE HOCHSCHILD COHOMOLOGY VIA AN ARBITRARY RESOLUTION
AU - Volkov, Yury
PY - 2019/8/1
Y1 - 2019/8/1
N2 - We prove formulas of different types that allow us to calculate the Gerstenhaber bracket on the Hochschild cohomology of an algebra using some arbitrary projective bimodule resolution for it. Using one of these formulas, we give a new short proof of the derived invariance of the Gerstenhaber algebra structure on Hochschild cohomology. We also give some new formulas for the Connes differential on the Hochschild homology that lead to formulas for the Batalin-Vilkovisky (BV) differential on the Hochschild cohomology in the case of symmetric algebras. Finally, we use one of the obtained formulas to provide a full description of the BV structure and, correspondingly, the Gerstenhaber algebra structure on the Hochschild cohomology of a class of symmetric algebras.
AB - We prove formulas of different types that allow us to calculate the Gerstenhaber bracket on the Hochschild cohomology of an algebra using some arbitrary projective bimodule resolution for it. Using one of these formulas, we give a new short proof of the derived invariance of the Gerstenhaber algebra structure on Hochschild cohomology. We also give some new formulas for the Connes differential on the Hochschild homology that lead to formulas for the Batalin-Vilkovisky (BV) differential on the Hochschild cohomology in the case of symmetric algebras. Finally, we use one of the obtained formulas to provide a full description of the BV structure and, correspondingly, the Gerstenhaber algebra structure on the Hochschild cohomology of a class of symmetric algebras.
KW - Hochschild cohomology
KW - Gerstenhaber bracket
KW - bimodule resolution
KW - derived equivalence
KW - BATALIN-VILKOVISKY ALGEBRA
KW - COMPARISON MORPHISMS
KW - RING
UR - http://www.scopus.com/inward/record.url?scp=85061278358&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/gerstenhaber-bracket-hochschild-cohomology-via-arbitrary-resolution
U2 - 10.1017/S0013091518000901
DO - 10.1017/S0013091518000901
M3 - статья
VL - 62
SP - 817
EP - 836
JO - Proceedings of the Edinburgh Mathematical Society
JF - Proceedings of the Edinburgh Mathematical Society
SN - 0013-0915
IS - 3
ER -
ID: 43692515