The integral representation of solutions of KZ equation and a modification by K operator insertion
Abstract
A root of unity limit of the q-deformed Virasoro algebra is considered. The sl(2)k current algebra and the integral formulas of the solutions of the KZ equations can be realized by the q-deformed boson at the limit and an additional boson. We explicitly construct the integral representation of the four-point blocks with a K-operator insertion.
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