83 citations · 266 across the 9 of their papers we have counts for
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astro-ph2008★ 14 cited
A minimal set of invariants as a systematic approach to higher order gravity models
Mustapha Ishak, Jacob Moldenhauer
Higher-order gravity models have been recently the subject of much attention in the context of cosmic acceleration. These models are derived by adding various curvature invariants…
astro-ph2007★ 60 cited
A New Independent Limit on the Cosmological Constant/Dark Energy from the Relativistic Bending of Light by Galaxies and Clusters of Galaxies
Mustapha Ishak, Wolfgang Rindler, Jason Dossett +2
We derive new limits on the value of the cosmological constant, , based on the Einstein bending of light by systems where the lens is a distant galaxy or a cluster of galaxies.…