Let $A$ be a Hopf algebra over a field $K$ of characteristic zero such that its coradical $H$ is a finite dimensional sub-Hopf algebra. Our main theorem shows that there is a gauge transformation $\zeta $ on $A$ such that $ A^{\zeta }\cong Q\#H$ where $A^\zeta$ is the dual quasi-bialgebra obtained from $A$ by twisting its multiplication by $\zeta$, $Q$ is a connected dual quasi-bialgebra in $^H_H\mathcal{YD}$ and $Q \#H $ is a dual quasi-bialgebra called the bosonization of $Q$ by $H $.

Gauge Deformations for Hopf Algebras with the Dual Chevalley Property

ARDIZZONI, Alessandro;
2012-01-01

Abstract

Let $A$ be a Hopf algebra over a field $K$ of characteristic zero such that its coradical $H$ is a finite dimensional sub-Hopf algebra. Our main theorem shows that there is a gauge transformation $\zeta $ on $A$ such that $ A^{\zeta }\cong Q\#H$ where $A^\zeta$ is the dual quasi-bialgebra obtained from $A$ by twisting its multiplication by $\zeta$, $Q$ is a connected dual quasi-bialgebra in $^H_H\mathcal{YD}$ and $Q \#H $ is a dual quasi-bialgebra called the bosonization of $Q$ by $H $.
2012
11
2
1250051-1
1250051-37
http://arxiv.org/pdf/1012.4935.pdf
http://dx.doi.org/10.1142/S0219498811005798
Hopf algebra; dual Chevalley property; cocycle twist; dual quasi-Hopf algebra.
A. ARDIZZONI; M. BEATTIE; C. MENINI
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/92399
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