Electronic Journal of Differential Equations, Vol. 2009(2009), No. 102, pp. 1-12. Title: The Fuchsian Cauchy problem Authors: Malika Belarbi (Univ. Djilali Liabes, Algeria) Mustapha Mechab (Univ. Djilali Liabes, Algeria) Abstract: This article presents a global version of the main theorem by Baouendi and Goulaouic \cite{bago}, in the space of differentiable functions with respect to Fuchsian variable, and holomorphic with respect to other variables. We have no assumptions on the characteristic exponents, and no hyperbolicity conditions. Submitted July 23, 2009. Published August 21, 2009. Math Subject Classifications: 32W50. Key Words: Fuchsian operators; holomorphic functions.