%0 Journal Article %T Motivic Milnor fiber of a quasi-ordinary hypersurface %A Pedro Daniel Gonzalez Perez %A Manuel Gonz¨˘lez Villa %J Mathematics %D 2011 %I arXiv %X Let $f$ be a germ of complex analytic function at $({\mathbf{C}}^{d+1}, 0)$ such that its zero level defines an irreducible germ of quasi-ordinary hypersurface $(S,0)$. We describe the motivic Igusa zeta function, the motivic Milnor fibre and the Hodge-Steenbrink spectrum of $f$ at 0 in terms of topological invariants of the quasi-ordinary hypersurface $(S,0)$. %U http://arxiv.org/abs/1105.2480v1