94 citations · 129 across the 11 of their papers we have counts for
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Constraint closure and gravitational-wave content of shear-free cosmologies in metric f(R) gravity
Mudhahir Al Ajmi, Amare Abebe
We derive the consistency conditions governing the propagating content of linear shear-free perturbations of Friedmann-Lema\^ıtre-Robertson-Walker cosmologies in metric grav…
Thermal suppression of bubble nucleation at first-order phase transitions in the early Universe
Mudhahir Al Ajmi, Mark Hindmarsh
One of the key observables in a gravitational wave power spectrum from a first order phase transition in the early Universe is the mean bubble spacing, which depends on the rate of…
Shear-free conditions of a Chaplygin-Gas-dominated universe
Amare Abebe, Mudhahir Al Ajmi, Maye Elmardi +2
In this work, we revisit the shear-free conjecture of general relativity and show the violation of the well-known shear-free condition for perfect-fluid spacetimes. It had been sho…
On gravitational wave modes in Nash theory of gravity
Phongpichit Channuie, Davood Momeni, Mudhahir Al Ajmi
In this Letter, we consider original Nash theory of gravity. In terms of the scalar fields representation, Nash gravity is equivalent to the action of bi-scalar tensor gravity with…
Phase Space description of Nonlocal Teleparallel Gravity
Kazuharu Bamba, Davood Momeni, Mudhahir Al Ajmi
We study cosmological solutions in nonlocal teleparallel gravity or theory, where is the torsion scalar in teleparallel gravity. This is a natural extenstion of the usua…