%0 Journal Article %T A Generalized Ito Formula %A Kenneth L. Kuttler %A Ji Li %J Mathematics %D 2013 %I arXiv %X An Ito formula is developed in a context consistent with the development of abstract existence and unique- ness theorems for nonlinear stochastic partial differential equations, which are singular or degenerate. This is a generalization of an earlier Ito formula for Gelfand triples. After this, an existence theorem is presented for some singular and degenerate stochastic equations followed by a few examples. %U http://arxiv.org/abs/1302.1142v1