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Nonlocal cosmological models with quadratic potentials are considered. Westudy the action with an arbitrary analytic function F(\Box_g), which has bothdouble and simple roots. The formulae for nonlocal energy-momentum tensor,which correspond to double roots, have been obtained. The way to findparticular solutions for nonlocal Einstein equations in the case when F(\Box_g)has both simple and double roots has been proposed. One and the same functionssolve the initial nonlocal Einstein equations and the obtained local Einsteinequations.

Localization of nonlocal cosmological models with quadratic potentials in the case of double roots