Results 61 to 70 of about 659,273 (124)

Vanishing viscosity limit for a one-dimensional viscous conservation law in the presence of two noninteracting shocks

open access: yesDemonstratio Mathematica
In this article, we study the inviscid limit of the solution to the Cauchy problem of a one-dimensional viscous conservation law, where the second-order term is nonlinear. Under the assumption that the inviscid equation admits a piecewise smooth solution
Feng Li, Wang Jing
doaj   +1 more source

Stability Problems and Analytical Integration for the Clebsch’s System

open access: yesOpen Mathematics, 2019
The nonlinear stability and the existence of periodic orbits of the equilibrium states of the Clebsch’s system are discussed.. Numerical integration using the Lie-Trotter integrator and the analytic approximate solutions using Multistage Optimal Homotopy
Pop Camelia, Ene Remus-Daniel
doaj   +1 more source

Nonlinear stability of shear deformable eccentrically stiffened functionally graded plates on elastic foundations with temperature-dependent properties

open access: yesScience and Engineering of Composite Materials, 2017
This article investigates the nonlinear stability of eccentrically stiffened moderately thick plates made of functionally graded materials (FGM) subjected to in-plane compressive, thermo-mechanical loads.
Cong Pham Hong   +2 more
doaj   +1 more source

Optimal Explicit Strong Stability Preserving Runge--Kutta Methods with High Linear Order and optimal Nonlinear Order [PDF]

open access: yes, 2014
High order spatial discretizations with monotonicity properties are often desirable for the solution of hyperbolic PDEs. These methods can advantageously be coupled with high order strong stability preserving time discretizations.
Gottlieb, Sigal   +2 more
core  

Stability problems and numerical integration on the Lie group SO(3) × R3 × R3

open access: yesOpen Mathematics, 2018
The paper is dealing with stability problems for a nonlinear system on the Lie group SO(3) × R3 × R3. The approximate analytic solutions of the considered system via Optimal Homotopy Asymptotic Method are presented, too.
Pop Camelia, Ene Remus-Daniel
doaj   +1 more source

Nonlinear modes in the harmonic PT-symmetric potential

open access: yes, 2012
We study the families of nonlinear modes described by the nonlinear Schr\"odinger equation with the PT-symmetric harmonic potential $x^2-2i\alpha x$. The found nonlinear modes display a number of interesting features. In particular, we have observed that
Dmitry A. Zezyulin   +4 more
core   +1 more source

Nonlinear localized modes at phase-slip defects in waveguide arrays

open access: yes, 2007
We study light localization at a phase-slip defect created by two semi-infinite mismatched identical arrays of coupled optical waveguides. We demonstrate that the nonlinear defect modes possess the specific properties of both nonlinear surface modes and ...
Aceves   +17 more
core   +1 more source

Review on Application of Control Algorithms to Power Regulations of Reactor Cores

open access: yesITM Web of Conferences, 2016
This research is to solve the stability analysis issue of nonlinear pressurized water reactor cores. On the basis of modeling a nonlinear pressurized water reactor core using the lumped parameter method, its linearized model is achieved via the small ...
Li Gang   +4 more
doaj   +1 more source

Stability of pole solutions for planar propagating flames: II. Properties of eigenvalues/eigenfunctions and implications to stability [PDF]

open access: yes, 2000
In a previous paper (Part I) we focused our attention on pole solutions that arise in the context of flame propagation. The nonlinear development that follows after a planar flame front becomes unstable is described by a single nonlinear PDE which admits
Matalon, Moshe, Vaynblat, Dimitri
core  

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