On Some Algebraic Structures Arising in String Theory

Details On Some Algebraic Structures Arising in String Theory On Some Algebraic Structures Arising in String Theory

1992-12-11

arxiv.org/abs/hep-th/9212072v2

Physics

High Energy Physics

High Energy Physics - Theory

15 pages (Some corrections were made)

Scientific paper

Lian and Zuckerman proved that the homology of a topological chiral algebra can be equipped with the structure of a BV-algebra; \ie one can introduce a multiplication, an odd bracket, and an odd operator $\Delta$ having the same properties as the corresponding operations in Batalin-Vilkovisky quantization procedure. We give a simple proof of their results and discuss a generalization of these results to the non chiral case. To simplify our proofs we use the following theorem giving a characterization of a BV-algebra in terms of multiplication and an operator $\Delta$: {\em If $A$ is a supercommutative, associative algebra and $\Delta$ is an odd second order derivation on $A$ satisfying $\Delta^2=0$, one can provide $A$ with the structure of a BV-algebra.}

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