We present an exact spherical black hole solution in de Rham, Gabadadze, and Tolley
(dRGT) massive gravity for a generic choice of the parameters in the theory, and also …

In this work, we review the effective field theory framework to search for Lorentz and CPT
symmetry breaking during the propagation of gravitational waves. The article is written so as …

By using the Hamiltonian formulation, we demonstrate that the Merton-Garman equation
emerges naturally from the Black-Scholes equation after imposing invariance (symmetry) …

In nonrelativistic systems, when there is spontaneous symmetry breaking, the number of
Nambu–Goldstone bosons (n NG) are not necessarily equal to the number of broken …

In this paper, we will analyze a time dependent geometry in a massive theory of gravity. This
will be done by analyzing Vaidya spacetime in such a massive theory of gravity. As …

If we apply the path-integral formulation in order to analyze the particle creation process of
black holes inside the non-linear formulation of massive gravity, it is possible to demonstrate …

An excruciating issue that arises in mathematical, theoretical and astro-physics concerns the
possibility of regularizing classical singular black hole solutions of general relativity by …

We show the direct analogy between the ghost-free non-linear formulation of massive
gravity and the standard σ-models well understood in the literature. This issue explains why …

We derive the vacuum energy from the zero-point quantum fluctuations after imposing a
natural constraint emerging from the rotational symmetry inside the de-Sitter metric. The …

We start where we use an inflaton value due to use of a scale factor. Also we use as the
variation of the time component of the metric tensor in Pre-Planckian Space-time. In doing …