2014/07/01 by Ebeling, Wolfgang, ~Gusein-Zade, Sabir M.
#14J33 #14R20 #57R18 #58K10 #Algebraic Geometry (math.AG) #FOS: Mathematics
paper · doi:10.48550/arxiv.1407.0154
An invertible polynomial in n variables is a quasihomogeneous polynomial consisting of n monomials so that the weights of the variables and the quasi-degree are well defined. In the framework of the construction of mirror symmetric orbifold Landau--Ginzburg models, P.~Berg\-lund, T.~Hübsch and M.~Henningson considered a pair (f,G) consisting of an invertible polynomial f and an abelian group G of its symmetries together with a dual pair (\widetildef, \widetildeG). Here we study the reduced orbifold zeta functions of dual pairs (f,G) and (\widetildef, \widetildeG) and show that they either coincide or are inverse to each other depending on the number n of variables.