%0 Journal Article %T A uniform L^{\infty} estimate for complex Monge-Ampere equations %A Slawomir Kolodziej %A Gang Tian %J Mathematics %D 2007 %I arXiv %X We prove uniform sup-norm estimates for the Monge-Ampere equation with respect to a family of Kahler metrics which degenerate towards a pull-back of a metric from a lower dimensional manifold. This is then used to show the existence of generalized Kahler-Einstein metrics as the limits of the Kahler-Ricci flow for some holomorphic fibrations (in the spirit of Song and Tian "The Kahler-Ricci flow on surfaces of positive Kodaira dimension", arXiv:math/0602150). %U http://arxiv.org/abs/0710.1144v1