Abstract. The systems of differential equations associated with the classical hypergeometric functions and the hypergeometric functions on the space of point configurations are investigated from the viewpoint of the twisted de Rham theory. In each case, it is proved that the integral of a certain multivalued function over an arbitrary twisted (or loaded) cycle satisfies the system of differential equations in question. The classical hypergeometric functions studied here include Appell's hypergeometric functions
IntroductionIn this paper, we investigate the systems of differential equations associated with the classical hypergeometric functions, as well as the hypergeometric functions on the space of point configurations, in the framework of the twisted de Rham theory. In each case, we prove that the integral of a certain multivalued function over an arbitrary twisted (or loaded) cycle satisfies the system of differential equations in question. The classical hypergeometric functions studied here include Appell's hypergeometric functions F 1 , F 2 , F 3 , F 4 , Lauricella's hypergeometric functions F A , F B , F C , F D , and the generalized hypergeometric function n+1 F n . The corresponding differential equations will be denoted by E 1 , E 2 , E 3 , E 4 , E A , E B , E C , E D , and n+1 E n .We briefly explain the point of our investigation, taking the example of integrals associated with n+1 F n :