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TMF, 2015 Volume 183, Number 1, Pages 62–77 (Mi tmf8794)

Deformations of the antibracket with Grassmann-valued deformation parameters

S. E. Konsteinab, I. V. Tyutinac

a Tamm Department of Theoretical Physics, Lebedev Physical Institute, RAS, Moscow, Russia
b Scientific Research Institute of Experimental and Theoretical Physics, Al-Farabi Kazakh National University, Almaty, Kazakhstan.
c Tomsk State Pedagogical University, Tomsk, Russia

Abstract: We consider the antibracket superalgebra realized on the space of smooth functions on $\mathbb{R}^1$ with values in the Grassmann algebra with one generator $\xi$ and consisting of elements of the form $\xi f_0(x)+f_1(x)$ with compactly supported $f_0$. Any basis of the second cohomology space with coefficients in the adjoint representation of this superalgebra consists of three odd and infinitely many even elements. We describe a large class of deformations of this superalgebra with Grassmann-valued deformation parameters. In particular, we find all deformations of this superalgebra that have exactly three odd parameters.

Keywords: antibracket, deformation, cohomology, Poisson superalgebra.

Received: 15.09.2014

DOI: 10.4213/tmf8794


 English version:
Theoretical and Mathematical Physics, 2015, 183:1, 501–515

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