24 citations · 84 across the 11 of their papers we have counts for
11 papers
Symmetricity of rings relative to the prime radical
Debraj Roy, Tikaram Subedi
In this paper, we introduce and study a strict generalization of symmetric rings. We call a ring if for any implies $bac\in P(R…
Vacuum energy in asymptotically flat 2+1 gravity
Olivera Miskovic, Rodrigo Olea, Debraj Roy
We compute the vacuum energy of three-dimensional asymptotically flat space based on a Chern-Simons formulation for the Poincare group. The equivalent action is nothing but the Ein…
Effects of curvature and gravity from flat spacetime
Debraj Roy
We study some aspects of gravity in relation to flat spacetime. At first, we study an accelerated observer in Minkowski space as a quantum tunnelling problem in Rindler space. Both…
Lagrangian analysis of `trivial' symmetries in models of gravity
Debraj Roy
We study the differences between Poincare and canonical hamiltonian symmetries in models of gravity through the corresponding Noether identities and show that they are equivalent m…
Trivial symmetries in a 3D topological torsion model of gravity
Rabin Banerjee, Debraj Roy
We study the gauge symmetries in a Mielke-Baekler type model of gravity in 2+1 dimensions. The model is built in a Poincare gauge theory framework where localisation of Poincare sy…
Poincaré gauge symmetries, hamiltonian symmetries and trivial gauge transformations
Rabin Banerjee, Debraj Roy
We resolve a problem of finding the Poincare symmetries from hamiltonian gauge symmetries constructed through a canonical procedure of handling constrained systems. Through the use…