Phys. Rev. D 79, 068501 (2009) [1 pages]Comment on “Existence of Einstein static universes and their stability in fourth-order theories of gravity”Received 26 November 2008; published 6 March 2009 It is argued that the solution space of the equation determining the class of f(R) theories which admit an Einstein static universe should be broadened by including the algebraic roots. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.79.068501
DOI:
10.1103/PhysRevD.79.068501
PACS:
04.25.Nx
See AlsoOriginal Article: Rituparno Goswami, Naureen Goheer, and Peter K Dunsby, Existence of Einstein static universes and their stability in fourth-order theories of gravity, Phys. Rev. D 78, 044011 (2008). |
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