Results 291 to 300 of about 67,179 (317)

Quasi-stability and attractors for a nonlinear coupled wave system with memory [PDF]

Bollettino dell'Unione Matematica Italiana, 2020
In this paper it will be considered a non-linear system consisting of two wave equations, non-homogeneous and coupled under the effect of non-linear source and damping terms. In addition, one of them will also act as a memory term. The structure of the dynamic system associated with the solutions of this system will allow the use of the quasi-stability
M. J. Dos Santos, R. F. C. Lobato, S. M. S. Cordeiro, A. C. B. Dos Santos   +3 more
openaire   +1 more source

Thermodynamic quasi-stability of super entropic BTZ black hole [PDF]

International Journal of Modern Physics A, 2022
We know that criteria for thermodynamic stability of a most general black hole appears in the form of a series of inequalities connecting second-order derivatives of the black hole mass with respect to its parameters. Quasi-stable black holes satisfy some of these stability criteria in a certain regime of parameter space, but they never satisfy all ...
openaire   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Quasi-stability of a plasma bicylinder

Technical Physics, 2003
Observations seem to indicate that, in the plasmas of tokamaks and Z-pinches, short-lived closed current loops (filaments) can arise, each of which is composed of a pair of countercurrents flowing within the two halves of the cross section of the plasma cylinder in directions perpendicular to that of the main magnetic field.
V. P. Vlasov, B. A. Trubnikov
openaire   +2 more sources

On quasi stability for impulsive differential systems

Nonlinear Analysis: Theory, Methods & Applications, 1989
On developpe une theorie de la stabilite relativement a une solution donnee de systemes differentiels impulsifs.
Xinzhi Liu, V. Lakshmikantham
openaire   +2 more sources

Quasi-stability regions of nonlinear dynamical systems: theory

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1996
The concept of a stability region (region of attraction) of nonlinear dynamical systems is widely accepted in many fields such as engineering and the sciences. When utilizing this concept, the Lyapunov function approach has been found to give rather conservative estimations of the stability regions of many nonlinear systems.
Hsiao-Dong Chiang, L. Fekih-Ahmed
openaire   +2 more sources

Quasi-stability regions of nonlinear dynamical systems: optimal estimations

IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications, 1996
In this paper, we develop an effective scheme to estimate stability regions by using an energy function that is a generalization of the Lyapunov functions. It is shown that the scheme can optimally estimate stability regions. A fairly comprehensive study for the structure of the constant energy surface lying inside the quasi-stability region is ...
Hsiao-Dong Chiang, L. Fekih-Ahmed
openaire   +2 more sources

Quasi-stabilized ionic gratings in photorefractive media for multiplex holography

Journal of the Optical Society of America B, 1997
We investigate photorefractive media for which quasi-stabilized ionic gratings can be used to prolong readout lifetime. We use coupled-transport-mode theory to describe the coevolution of photorefractive gratings that arise from free-electron transport and ionic transport.
Matthew C. Bashaw, J. F. Heanue
openaire   +2 more sources

Quasi-Stability of Real Coded Finite Populations

2014
This contribution analyzes dynamics of mean and variance of real chromosomes in consecutive populations of an Evolutionary Algorithm with selection and mutation. Quasi-stable state is characterized with an area in which population mean and variance will remain roughly unchanged for many generations. Size of the area can be indirectly estimated from the
Jarosław Arabas, Rafał Biedrzycki
openaire   +2 more sources

Quasi‐stability and upper semicontinuity for coupled parabolic equations with memory

Studies in Applied Mathematics, 2020
AbstractThis current study deals with the long‐time dynamics of a nonlinear system of coupled parabolic equations with memory. The system describes the thermodiffusion phenomenon where the fluxes of mass diffusion and heat depend on the past history of the chemical potential and the temperature gradients, respectively, according to Gurtin‐Pipkin's law.
openaire   +2 more sources