Results 61 to 70 of about 57,321 (196)

Rational Homotopy Perturbation Method for solving stiff systems of ordinary differential equations

open access: yesApplied Mathematical Modelling, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Biazar, Jafar   +2 more
openaire   +2 more sources

Evolutionary Conditions in the Dissipative MHD System Revisited

open access: yes, 2007
The evolutionary conditions for the dissipative continuous magnetohydrodynamic (MHD) shocks are studied. We modify Hada's approach in the stability analysis of the MHD shock waves.
Inoue, Tsuyoshi, Inutsuka, Shu-ichiro
core   +1 more source

Model Construction and Analysis of Respiration in Halobacterium salinarum. [PDF]

open access: yesPLoS ONE, 2016
The archaeon Halobacterium salinarum can produce energy using three different processes, namely photosynthesis, oxidative phosphorylation and fermentation of arginine, and is thus a model organism in bioenergetics.
Cherryl O Talaue   +4 more
doaj   +1 more source

Stability of invariant manifold of nonlinear system of differential equations

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2019
The theory of extensions of the dynamical equations on the torus is an important section of the theory of ordinary differential equations that is intensively evolving and has an important applied application to various tasks of science and technology ...
С. І. Балога
doaj   +1 more source

Analysis of black hole solutions in parabolic class using neural networks

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this paper, we introduce a numerical method based on Artificial Neural Networks (ANNs) for the analysis of black hole solutions to the Einstein-axion-dilaton system in a high dimensional parabolic class.
Ehsan Hatefi   +2 more
doaj   +1 more source

The Poincare map of randomly perturbed periodic motion

open access: yes, 2012
A system of autonomous differential equations with a stable limit cycle and perturbed by small white noise is analyzed in this work. In the vicinity of the limit cycle of the unperturbed deterministic system, we define, construct, and analyze the ...
Hitczenko, Pawel, Medvedev, Georgi S.
core   +1 more source

Efficient method for solving highly oscillatory ordinary differential equations with applications to physical systems

open access: yesPhysical Review Research, 2020
We present a numerical routine (oscode) with a C++ and Python interface for the efficient solution of one-dimensional, second-order, ordinary differential equations with rapidly oscillating solutions.
F. J. Agocs   +3 more
doaj   +1 more source

Reconstruction of inhomogeneous metric perturbations and electromagnetic four-potential in Kerr spacetime

open access: yes, 2002
We present a procedure that allows the construction of the metric perturbations and electromagnetic four-potential, for gravitational and electromagnetic perturbations produced by sources in Kerr spacetime.
Amos Ori   +11 more
core   +1 more source

Differential inequalities for functional perturbations of first-order ordinary differential equations

open access: yesApplied Mathematics Letters, 2002
The author studies the differential system \(v'(t)+mv(t)+[p(v)](t)\leq 0\) with \(v(0)-v(T)\leq 0\). The main results conclude \(v(t)\leq 0\) for appropriate applications \(p:L^1([0,T])\to L^1([0,T])\) and real constants \(m\). A typical hypothesis states the existence of a real constant \(n\) such that \(n\min_{t\in[0,\tau]}v(t)\leq \text{ess}\inf_{t ...
openaire   +2 more sources

Quasinormal modes of plane-symmetric black holes according to the AdS/CFT correspondence

open access: yes, 2008
The electromagnetic and gravitational quasinormal spectra of $(3+1)$-dimensional plane-symmetric anti-de Sitter black holes are analyzed in the context of the AdS/CFT correspondence.
Miranda, Alex S.   +2 more
core   +2 more sources

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