Article citationsMore>>

Rahaman, F., Chakraborty, K., Kuhfittig, P.K.F., Shit, G.C. and Rahman, M. (2014) A New Deterministic Model of Strange Stars. European Physical Journal C, 74, 3126. https://doi.org/10.1140/epjc/s10052-014-3126-6

has been cited by the following article:

• TITLE: A Note on the Cosmological Constant in f(R) Gravity

  AUTHORS: Peter K. F. Kuhfittig

  KEYWORDS: Cosmological Constant, f(R) Gravity

  JOURNAL NAME: Journal of Applied Mathematics and Physics, Vol.5 No.4, April 30, 2017

  ABSTRACT: The starting point in this note is f(R) modified gravity in a cosmological setting. We assume a spatially flat universe to describe late-time cosmology and the perfect-fluid equation of state to model the hypothesized dark energy. Given that on a cosmological scale, f(R) modified gravity must remain close to Einstein gravity to be consistent with observation, it was concluded that either (1) Einstein’s cosmological constant was the only acceptable model for the accelerated expansion, or that (2) the equation of state for dark energy was far more complicated than the perfect-fluid model and might even exclude a constant w.