Results 61 to 70 of about 159,057 (193)

Nonlinear eigenvalue problems for generalized Painlevé equations [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2019
25 pages, 5 figures, 1 ...
Carl M Bender   +2 more
openaire   +3 more sources

Existence and Uniqueness of Solutions to a Nonlocal Equation with Monostable Nonlinearity

open access: yes, 2011
Let $J \in C(\mathbb{R})$, $J\ge 0$, $\int_{\tiny$\mathbb{R}$} J = 1$ and consider the nonlocal diffusion operator $\mathcal{M}[u] = J \star u - u$. We study the equation $\mathcal{M} u + f(x,u) = 0$, $u \ge 0$, in $\mathbb{R}$, where $f$ is a KPP-type ...
Juan Dávila   +4 more
core   +1 more source

THE HYPERBOLIC QUADRATIC EIGENVALUE PROBLEM

open access: yesForum of Mathematics, Sigma, 2015
The hyperbolic quadratic eigenvalue problem (HQEP) was shown to admit Courant–Fischer type min–max principles in 1955 by Duffin and Cauchy type interlacing inequalities in 2010 by Veselić.
XIN LIANG, REN-CANG LI
doaj   +1 more source

Maximum Principle and generalized principal eigenvalue for degenerate elliptic operators [PDF]

open access: yes, 2013
We characterize the validity of the Maximum Principle in bounded domains for fully nonlinear degenerate elliptic operators in terms of the sign of a suitably defined generalized principal eigenvalue.
Berestycki, Henri   +3 more
core  

Nonlinear Effects of Electromagnetic TM Wave Propagation in Anisotropic Layer with Kerr Nonlinearity

open access: yesAdvances in Mathematical Physics, 2012
The problem of electromagnetic TM wave propagation through a layer with Kerr nonlinearity is considered. The layer is located between two half-spaces with constant permittivities.
Yu G. Smirnov, D. V. Valovik
doaj   +1 more source

A generalized Lyapunov inequality for a higher-order fractional boundary value problem

open access: yesJournal of Inequalities and Applications, 2016
In the paper, we establish a Lyapunov inequality and two Lyapunov-type inequalities for a higher-order fractional boundary value problem with a controllable nonlinear term. Two applications are discussed.
Dexiang Ma
doaj   +1 more source

Interval Nonlinear Eigenvalue Problems [PDF]

open access: yes, 2013
Nonlinear eigenvalue Problems are currently receiving much attention because of its extensive applications in areas such as the dynamic analysis of mechanical systems, acoustics and fluid mechanics etc.
Sadangi, Satyabrata
core  

Eigenvalue Problem of Nonlinear Semipositone Higher Order Fractional Differential Equations

open access: yesAbstract and Applied Analysis, 2012
We study the eigenvalue interval for the existence of positive solutions to a semipositone higher order fractional differential equation = =   where ,  , , , satisfying , is the standard Riemann-Liouville derivative, , and is allowed to be ...
Jing Wu, Xinguang Zhang
doaj   +1 more source

Nonlinear Elliptic Eigenvalue Problems with Discontinuities

open access: yesJournal of Mathematical Analysis and Applications, 1999
Existence of nontrivial solutions to two nonlinear eigenvalue problems with discontinuous nonlinearities is proved in this paper. The first one is given by \(-\Delta_p\in \lambda[f_0(x,u), f_1(x,u)]\) in \(D\), \(u=0\) on \(\partial D\), where \(D\) is a smooth bounded domain in \(\mathbb{R}^N\), \(p\geq 2\), \(\lambda\) is a real parameter and \(f_0(x,
Hu, Shouchuan   +2 more
openaire   +1 more source

Numerical Solitons of Generalized Korteweg-de Vries Equations

open access: yes, 2005
We propose a numerical method for finding solitary wave solutions of generalized Korteweg-de Vries equations by solving the nonlinear eigenvalue problem on an unbounded domain. The artificial boundary conditions are obtained to make the domain finite. We
Camassa   +7 more
core   +2 more sources

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