RETRACTED: Multidimensional viscosity solution theory of semi-linear partial differential equations

This article was retracted at the request of the Editors, in agreement with the authors. This paper has been retracted as the main results have a high level of similarity with the work published by E. Pardoux et al., Probabilistic interpretation of a system of semi-linear parabolic partial differential equations, Annales de l'Institut Henri Poincare (B) Probability and Statistics 33 (4) (1997) 467-490, http://www.sciencedirect.com/science/article/pii/S024602039780101X?via%3Dihub.