23 citations · 105 across the 14 of their papers we have counts for
14 papers
A new gravitational N-body simulation algorithm for investigation of cosmological chaotic advection
Diego H. Stalder, Reinaldo R. Rosa, José da Silve Junior +6
Recently alternative approaches in cosmology seeks to explain the nature of dark matter as a direct result of the non-linear spacetime curvature due to different types of deformati…
The q-gradient method for global optimization
Aline C. Soterroni, Roberto L. Galski, Fernando M. Ramos
The q-gradient is an extension of the classical gradient vector based on the concept of Jackson's derivative. Here we introduce a preliminary version of the q-gradient method for u…
Evidence of Turbulence-like Universality on the Formation of Galaxy-sized Dark Matter Haloes
Cesar A. Caretta, Reinaldo R. Rosa, Haroldo F. de Campos Velho +2
Although the theoretical understanding of the nonlinear gravitational clustering has greatly advanced in the last decades, in particular by the outstanding improvement on numerical…
Energy Ranking Preservation in a N-Body Cosmological Simulation
Christine C. Dantas, Fernando M. Ramos
In this paper we present a study of the cosmic flow from the point of view of how clusterings at different dynamical regimes in an expanding universe evolve according to a `coarse-…
Gravitational Mesoscopic Constraints in Cosmological Dark Matter Halos
Christine C. Dantas, Fernando M. Ramos
We present an analysis of the behaviour of the `coarse-grained' (`mesoscopic') rank partitioning of the mean energy of collections of particles composing virialized dark matter hal…
Generalized Thermostatistics and Wavelet Analysis of the Solar Wind and Proton Density Variability
Mauricio J. A. Bolzan, Reinaldo R. Rosa, Fernando M. Ramos +2
In this paper, we analyze the probability density function (PDF) of solar wind velocity and proton density, based on generalized thermostatistics (GT) approach, comparing theoretic…