Cocycle Properties of String Theories on Orbifolds
classification
✦ hep-th
keywords
cocycleoperatorsorbifoldspropertiesstringtheoriesvertexamplitudes
read the original abstract
We study cocycle properties of vertex operators and present an operator representation of cocycle operators, which are attached to vertex operators to ensure the duality of amplitudes. It is shown that this analysis makes it possible to obtain the general class of consistent string theories on orbifolds.
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