1992 (IPP)

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    Nonlinear sigma models for inflation scenarios
    (2014-11-23) Chervon, S.V.
    In 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.