Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki (Mar 2011)

Procedings of the 2nd International Conference "Mathematical Physics and its Applications"

  • I. V. Volovich,
  • I. Ya. Aref'eva

DOI
https://doi.org/10.14498/vsgtu938
Journal volume & issue
Vol. 1(22)
pp. 16 – 27

Abstract

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A system of nonlocal cosmological equations where the time variable runs over a half-line is considered. These equations are more suitable for description of the Universe than the previously discussed cosmological equations on the whole line since the Friedmann metric contains a singularity at the beginning of time. Definition of the exponential operator includes a new arbitrary function which is absent in the equations on the whole line. It is shown that this function could be choosen in such a way that one of the slow roll parameters in the chaotic inflation scenario can be made arbitrary small. Solutions of the linearized nonlocal equations on the half-line are constructed.