Gauss-Manin systems, Brieskorn lattices and Frobenius structures (I)
Abstract
We associate to any convenient nondegenerate Laurent polynomial on the complex torus (C*)n a canonical Frobenius-Saito structure on the base space of its universal unfolding. According to the method of K. Saito (primitive forms) and of M. Saito (good basis of the Gauss-Manin system), the main problem, which is solved in this article, is the analysis of the Gauss-Manin system of the Laurent polynomial (or its universal unfolding) and of the corresponding Hodge theory.
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