  The Landau-Ginzburg B-model for a germ of a holomorphic function with an
isolated critical point is constructed by K. Saito and finished by M. Saito.
Douai and Sabbah construct the Landau-Ginzburg B-models for some Laurent
polynomials. The construction relies on analytic procedures, and one can not
expect it can be done by purely algebraic method. In this note, we work out the
l-adic realization of the algebraic part of the construction.
