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  4. Gerstenhaber structure on Hochschild cohomology of the Fomin–Kirillov algebra on 3 generators
 
research article

Gerstenhaber structure on Hochschild cohomology of the Fomin–Kirillov algebra on 3 generators

Herscovich, Estanislao  
•
Li, Ziling
2022
Documenta Mathematica

The goal of this article is to compute the Gerstenhaber bracket of the Hochschild cohomology of the Fomin–Kirillov algebra on three generators over a field of characteristic different from 2 and 3. This is in part based on a general method we introduce to easily compute the Gerstenhaber bracket between elements of HH0(A) and elements of HHn(A) for n∈N0​, the method by M. Suárez-Álvarez [J. Pure Appl. Algebra 221, No. 8, 1981–1998 (2017; Zbl 1392.16009)] to calculate the Gerstenhaber bracket between elements of HH1(A) and elements of HHn(A) for any n∈N0​, as well as an elementary result that allows to compute the remaining brackets from the previous ones. We also show that the Gerstenhaber bracket of HH∙(A) is not induced by any Batalin–Vilkovisky generator.

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Type
research article
DOI
10.4171/dm/x18
Author(s)
Herscovich, Estanislao  
Li, Ziling
Date Issued

2022

Published in
Documenta Mathematica
Volume

27

Start page

1773

End page

1804

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
AVP-E-CAPE  
Available on Infoscience
January 12, 2024
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/202919
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