Solving Heun's equation using conformal blocks

It is known that the classical limit of the second order BPZ null vector decoupling equation for the simplest two 5-point degenerate spherical conformal blocks yields: (i) the normal form of the Heun equation with the complex accessory parameter determined by the 4-point classical block on the spher...

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Bibliographic Details
Main Authors: Marcin Pia̧tek, Artur R. Pietrykowski
Format: Article
Language:English
Published: Elsevier 2019-01-01
Series:Nuclear Physics B
Online Access:http://www.sciencedirect.com/science/article/pii/S0550321318303377