The variant of post-Newtonian mechanics with generalized fractional derivatives

Details The variant of post-Newtonian mechanics with generalized fractional derivatives The variant of post-Newtonian mechanics with generalized fractional derivatives

2011-01-20

arxiv.org/abs/1101.3933v1

CHAOS 16, 043117 (2006)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Scientific paper

10.1063/1.2384864

In this article we investigate mathematically the variant of post-Newtonian mechanics using generalized fractional derivatives. The relativistic-covariant generalization of the classical equations for gravitational field is studied. The equations match to (i) the weak Newtonian limit on the moderate scales, (ii) deliver a potential higher, that Newtonian, on certain, large-distance characteristic scales. The perturbation of the gravitational field results in the tiny secular perihelion shift and exhibits some unusual effects on large scales. The general representation of the solution for fractional wave equation is given in form of retarded potentials. The solutions for the Riesz wave equation and classical wave equation are clearly distinctive in an important sense. The Riesz wave demonstrates the space diffusion of gravitational wave at the scales of metric constant. The diffusion leads to the blur of the peak and disruption of the sharp wave front. This contrasts with the solution of D'Alembert classi-cal wave equation, which obeys the Huygens principle and does not diffuse.

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