Chervon, S.V.2014-11-232014-11-232014-11-23http://hdl.handle.net/11007/2702In this paper new implementation from nonlinear sigma models are presented for cosmological inflationary scenarios. It is shown that the scalar field models with any form of a potential of self –interaction can be derived from the appropriate nonlinear sigma model. The complete set of new exact salutation for the two- component sigma model in the spatially flat Friedmann-Robertson-Walker and de sitter universes is obtained.enCosmological modelsArticle