Abstract
interaction potential of the fields remains constant (as has been discussed within the framework of the model of “new” inflation). A general algorithm to solve the dynamical equations in the chiral (scalar) fields is indicated and special cases are investigated in which it is possible to find solutions in terms of elementary functions. A graphical analysis of the obtained solutions makes it possible to determine special regimes of the evolution of fields that can be investigated as well-founded approximations used to calculate cosmological parameters and make comparisons with observational data.
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