3 citations · 3 across the 2 of their papers we have counts for
5 papers
Polynomial affine model of gravity in three-dimensions
Oscar Castillo-Felisola, Bastian Grez, Oscar Orellana +4
In this work, we explore a three-dimensional formulation of the polynomial affine model of gravity, which is a model that extends general relativity by relaxing the equivalence pri…
pQCD running couplings finite and monotonic in the infrared: when do they reflect the holomorphic properties of spacelike observables?
Carlos Contreras, Gorazd Cvetic, Oscar Orellana
We investigate a large class of perturbative QCD (pQCD) renormalization schemes whose beta functions are meromorphic functions of the running coupling and give finite positi…
Emergent metric and geodesic analysis in cosmological solutions of (torsion-free) Polynomial Affine Gravity
Oscar Castillo-Felisola, Jose Perdiguero, Oscar Orellana +1
Starting from an affinely connected space, we consider a model of gravity whose fundamental field is the connection. We build up the action using as sole premise the invariance und…
Cosmological solutions to polynomial affine gravity in the torsion-free sector
Oscar Castillo-Felisola, José Perdiguero, Oscar Orellana
We find possible cosmological models of the Polynomial Affine Gravity described by connections that are either compatible or not with a metric. When possible, we compare them with…
On a three-layer Hele-Shaw model of enhanced oil recovery with a linear viscous profile
Prabir Daripa, Oscar Orellana, Rodrigo Meneses
We present a non-standard eigenvalue problem that arises in the linear stability of a three-layer Hele-Shaw model of enhanced oil recovery. A nonlinear transformation is introduced…