Generalized twistors of nonlocal vertex algebras

Abstract

We introduce and study the concept of (weak) pseudotwistor for a nonlocal vertex algebra, as a generalization of the notion of twistor. We give the relations between pseudotwistors and twisting operators. Furthermore, we study the inverse of an invertible weak pseudotwistor and the composition of two weak pseudotwistors.

Keywords

Twistor / pseudotwistor / nonlocal vertex algebra / twisting operator

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Higher Education Press and Springer-Verlag Berlin Heidelberg