Monodromy of dual invertible polynomials
arXiv:1008.4021
Abstract
A generalization of Arnold's strange duality to invertible polynomials in three variables by the first author and A.Takahashi includes the following relation. For some invertible polynomials the Saito dual of the reduced monodromy zeta function of coincides with a formal "root" of the reduced monodromy zeta function of its Berglund-Hübsch transpose . Here we give a geometric interpretation of "roots" of the monodromy zeta function and generalize the above relation to all non-degenerate invertible polynomials in three variables and to some polynomials in an arbitrary number of variables in a form including "roots" of the monodromy zeta functions both of and .