paper

Picture changing operators in supergeometry and superstring theory

arXiv:hep-th/9706033

Abstract

Geometrical meaning of superstring pictures is discussed in details. An off-shell generalization of the picture changing operation and its inverse are constructed. It is demonstrated that the generalised operations are inverse to each other on-shell while off-shell their product is a projection operator.

26 pages AMS LaTeX, Minor corrections

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