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Title: Analytical solutions in R + qRn cosmology from singularity analysis
Authors: Paliathanasis, Andronikos 
Leach, P. G. L. 
Keywords: Cosmology;f(R)-gravity;Integrability;Singularity analysis
Issue Date: 2016
Publisher: American Physical Society
Source: Paliathanasis, A. and Leach, P.G.L. 2016. Analytical solutions in R + qRn cosmology from singularity analysis. Physical Review Letters. 1-6
Journal: Physical review letters 
The integrability of higher-order theories of gravity is of importance in the determining the proper-ties of these models and so their viability as models of reality. An important tool in the establishment of integrability is the singularity analysis. We apply this analysis to the case of fourth-order the-ory of gravity f(R) = R + qRn to establish those values of the free parameters q and n for which integrability in this sense exists. As a prelininary we examine the well-known case of n = 4/3.
ISSN: 0031-9007 (print)
1079-7114 (online)
DOI: 10.1016/j.physleta.2016.06.053
Appears in Collections:Research Publications (Applied Sciences)

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