1 citations · 2 across the 5 of their papers we have counts for
5 papers
Entropic Chaplygin-Gas cosmology and late-universe tension diagnostics
Kelvis A. Kulhkampa, Carlos H. Coimbra-Araújob, Abraão J. S. Capistrano +2
We investigate an entropic generalized Chaplygin-gas (gCg) cosmology in which a single dark fluid accounts for both dark matter and dark energy. We constrain the model using DESI b…
Impulsive Control on Invariant Surfaces
C. C. Silva, J. Marao, A. Figueiredo +1
An impulsive feedback-adaptive control is developed in order to drive trajectories of a dynamical system towards an invariant manifold with fixed and spaced impulsive controls. The…
Linear Nash-Greene fluctuations on the evolution of and tensions
Abraão J. S. Capistrano, Luís A. Cabral, José A. P. F. Marão +1
We present the perturbation equations in an embedded four space-time from the linear Nash-Greene fluctuations of background metric. In the context of a five-dimensional bulk, we sh…
Logarithmic Cycles of the Time: An Quaternionic Approach
J. Marão
The satisfactory development of Quaternionic Analysis has indicated new solutions for physical and mathematical problems. It is worth mentioning the fact that quaternions possess f…
A Note on the Hypercomplex Riemann-Cauchy Like Relations for Quaternions and Laplace Equations
J A. P. F. Marão, M. F. Borges
In this note it is worked out a new set of Laplace-Like equations for quaternions through Riemann-Cauchy hypercomplex relations otained earlier \cite{BorgesZeMarcio}. As in the the…