Linear Odd Poisson Bracket on Grassmann Variables

Abstract

A linear odd Poisson bracket (antibracket) realized solely in terms of Grassmann variables is suggested. It is revealed that the bracket, which corresponds to a semi-simple Lie group, has at once three Grassmann-odd nilpotent $\Delta$-like differential operators of the first, the second and the third orders with respect to Grassmann derivatives, in contrast with the canonical odd Poisson bracket having the only Grassmann-odd nilpotent differential $\Delta$-operator of the second order. It is shown that these $\Delta$-like operators together with a Grassmann-odd nilpotent Casimir function of this bracket form a finite-dimensional Lie superalgebra.

7 pages, LATEX. Relation (34) is added and the rearrangement necessary for publication in Physics Letters B is made

References in corpus (1)

• Degenerate Odd Poisson Bracket on Grassmann Variables

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