Stability of spherically symmetric solutions in modified theories of gravity

  title={Stability of spherically symmetric solutions in modified theories of gravity},
  author={Michael Seifert},
  journal={Physical Review D},
In recent years, a number of alternative theories of gravity have been proposed as possible resolutions of certain cosmological problems or as toy models for possible but heretofore unobserved effects. However, the implications of such theories for the stability of structures such as stars have not been fully investigated. We use our ``generalized variational principle,'' described in a previous work [M. D. Seifert and R. M. Wald, Phys. Rev. D 75, 084029 (2007)], to analyze the stability of… Expand

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