Abstract Space plasmas can be described as conducting flows in a turbulent state, where
fluid motion is determined by a host of kinetic and magnetic coherent structures of different …

Hyperchaos is distinguished from chaos by the presence of at least two positive Lyapunov
exponents instead of just one in dynamical systems. A general scenario is presented here …

We study coherent structures in solar photospheric flows in a plage in the vicinity of the
active region AR 10930 using the horizontal velocity data derived from Hinode/Solar Optical …

We consider a multidimensional extension of Thomas–Rössler systems, that was inspired by
Thomas' earlier work on biological feedback circuits, and we report on our first results that …

In this work, a numerical study of a reduced model of magnetoconvection is presented. By
considering a background magnetic field in a conducting fluid in a plane layer, a …

Weak lensing is commonly measured using shear through galaxy ellipticities or using the
effect of magnification bias on galaxy number densities. Here, we report on the first detection …

No plasma de fusão, simulações numericas sao comumente utilizadas para investigar as
propriedades de confinamento do plasma na regiao de borda dos tokamaks. As equacoes …

The unstable periodic orbits (UPOs) embedded in a chaotic attractor after an attractor
merging crisis (MC) are classified into three subsets, and employed to reconstruct chaotic …

The control problem of the chaotic attractors of the two dimensional (2-d) Navier-Stokes (NS)
equations is addressed in this paper. First, the Fourier Galerkin method based on a reduced …

Este livro é resultado de uma tese de doutorado defendida no Instituto Tecnológico de
Aeronáutica, a qual tinha como objetivo desenvolver um estudo sobre modelos …