32 citations · 151 across the 7 of their papers we have counts for
7 papers
A Renormalized perturbation theory for problems with nontrivial boundary conditions or backgrounds in two space-time dimensions
Reza Moazzemi, Abdollah Mohammadi, Siamak S. Gousheh
In this paper we discuss the effects of nontrivial boundary conditions or backgrounds, including non-perturbative ones, on the renormalization program for systems in two dimensions…
Perfect fluid quantum Universe in the presence of negative cosmological constant
P. Pedram, M. Mirzaei, S. Jalalzadeh +1
We present perfect fluid Friedmann-Robertson-Walker quantum cosmological models in the presence of negative cosmological constant. In this work the Schutz's variational formalism i…
Quantum Stephani exact cosmological solutions and the selection of time variable
P. Pedram, S. Jalalzadeh, S. S. Gousheh
We study perfect fluid Stephani quantum cosmological model. In the present work the Schutz's variational formalism which recovers the notion of time is applied. This gives rise to…
Stephani-Schutz quantum cosmology
P. Pedram, S. Jalalzadeh, S. S. Gousheh
We study the Stephani quantum cosmological model in the presence of a cosmological constant in radiation dominated Universe. In the present work the Schutz's variational formalism…
Schrödinger-Wheeler-DeWitt equation in chaplygin gas FRW cosmological model
P. Pedram, S. Jalalzadeh, S. S. Gousheh
We present a chaplygin gas Friedmann-Robertson-Walker quantum cosmological model. In this work the Schutz's variational formalism is applied with positive, negative, and zero const…
Using Spectral Method as an Approximation for Solving Hyperbolic PDEs
P. Pedram, M. Mirzaei, S. S. Gousheh
We demonstrate an application of the spectral method as a numerical approximation for solving Hyperbolic PDEs. In this method a finite basis is used for approximating the solutions…