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physics.gen-ph2011★ 30 cited
Dark energy in some integrable and nonintegrable FRW cosmological models
Kuralay Esmakhanova, Nurgissa Myrzakulov, Gulgasyl Nugmanova +3
One of the greatest challenges in cosmology today is to determine the nature of dark energy, the sourse of the observed present acceleration of the Universe. Besides the vacuum ene…
physics.gen-ph2000
Geodesic Lines in the Gravitational Field of Nonlinear Cosmic Strings
L. M. Chechin, T. B. Omarov
We briefly review the equations of motion and the space-time interval due to the nonlinear cosmic string that have been derived in ref. [3] for the first time. The different types…