On an equivariant analogue of the monodromy zeta function
  We offer an equivariant analogue of the monodromy zeta function of a germ invariant with respect to an action of finite group G as an element of the Grothendieck ring of finite (Z x G)-sets. We formulate equivariant analogues of the Sebastiani-Thom theorem and of the A'Campo formula. 
Sabir M. Gusein-Zade
math.AG