Journal
INDIAN JOURNAL OF PHYSICS
Volume 87, Issue 2, Pages 195-200Publisher
INDIAN ASSOC CULTIVATION SCIENCE
DOI: 10.1007/s12648-012-0201-4
Keywords
Modified Riemann-Liouville fractional derivative; Fractional geodesic equation; Fractional Einstein's field equations; Newtonian limit; Cosmology
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Funding
- Key Laboratory of Numerical Simulation of Sichuan Province
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In this paper we set up a fractional generalization of Einstein's field equations based on fractional derivatives inside the geodesic action integral and obtained non-local fractional Einstein's field equations. More specifically, the total derivative of any generalized coordinate is considered to take the special form is a real parameter, is the classical derivative operator and is the modified left Riemann-Liouville fractional derivative operator so that the classical result of the calculus of variations is considered as a particular case. Many attractive astrophysical and cosmological solutions have been obtained and discussed in some details.
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