Kouji YANO, RIMS, Kyoto University. Title: A generalization of the Buckdahn--F\"ollmer formula Abstract: We study a class of transformations on the Wiener space obtained by the composite functions in the framework of partial Malliavin calculus and generalize the Buckdahn--F\"ollmer formula. Our formula turns out to be valid for the investigation of some Wiener functionals studied by Donati-Martin--Matsumoto--Yor and by Ikeda--Kusuoka--Manabe.