Results 11 to 20 of about 129,456 (180)

Asymptotic methods of nonlinear fracture mechanics: results, contemporary state and perspectives

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
In the paper the brief review of the important results of nonlinear fracture mechanics recently obtained by the asymptotic methods and perturbation techniques is given.
Larisa V Stepanova, Ekaterina M Adylina
doaj   +3 more sources

Two-parametric nonlinear eigenvalue problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2008
Eigenvalue problems of the form $x'' = -\lambda f(x^+) + \mu g(x^-),$ $\quad (i),$ $x(0) = 0, \; x(1) = 0,$ $\quad (ii)$ are considered, where $x^+$ and $x^-$ are the positive and negative parts of $x$ respectively.
Armands Gritsans, Felix Sadyrbaev
doaj   +1 more source

Computation of interior elastic transmission eigenvalues using a conforming finite element and the secant method

open access: yesResults in Applied Mathematics, 2020
The interior elastic transmission eigenvalue problem, arising from the inverse scattering theory of non-homogeneous elastic media, is nonlinear, non-self-adjoint and of fourth order.
Xia Ji, Peijun Li, Jiguang Sun
doaj   +1 more source

Nonlinear eigenvalue problems for nonhomogeneous Leray–Lions operators

open access: yesBoundary Value Problems, 2020
This paper deals with the mathematical analysis of a class of nonlinear eigenvalue problems driven by a nonhomogeneous differential operator. We are concerned both with the coercive and the noncoercive (and nonresonant) cases, which are in relationship ...
Mohamed Abdelwahed, Nejmeddine Chorfi
doaj   +1 more source

Global Bifurcation of Fourth-Order Nonlinear Eigenvalue Problems’ Solution

open access: yesInternational Journal of Differential Equations, 2021
In this paper, we study the global bifurcation of infinity of a class of nonlinear eigenvalue problems for fourth-order ordinary differential equations with nondifferentiable nonlinearity.
Fatma Aydin Akgun
doaj   +1 more source

The nonlinear eigenvalue problem [PDF]

open access: yesActa Numerica, 2017
Nonlinear eigenvalue problems arise in a variety of science and engineering applications, and in the past ten years there have been numerous breakthroughs in the development of numerical methods. This article surveys nonlinear eigenvalue problems associated with matrix-valued functions which depend nonlinearly on a single scalar parameter, with a ...
Guettel, Stefan, Tisseur, Francoise
openaire   +2 more sources

Isoperimetric inequalities for some nonlinear eigenvalue problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2004
In this paper we intend to review many of the known inequalities for eigenvalues of the Laplacian in Euclidean plane. Our aim is to show that we can generalize some results for the pseudo-Laplacian.
Gabriella Bognár
doaj   +1 more source

Existence of Positive Solutions for Nonlinear Eigenvalue Problems

open access: yesBoundary Value Problems, 2010
We use a fixed point theorem in a cone to obtain the existence of positive solutions of the differential equation, , , with some suitable boundary conditions, where is a parameter.
Wong Fu-Hsiang   +2 more
doaj   +2 more sources

Randomized Riemannian Preconditioning for Orthogonality Constrained Problems [PDF]

open access: yes, 2020
Optimization problems with (generalized) orthogonality constraints are prevalent across science and engineering. For example, in computational science they arise in the symmetric (generalized) eigenvalue problem, in nonlinear eigenvalue problems, and in ...
Avron, Haim, Shustin, Boris
core   +3 more sources

Some indefinite nonlinear eigenvalue problems [PDF]

open access: yes, 2004
In this work we study the structure of the set of positive solutions of a nonlinear eigenvalue problem with a weight changing sign. Specifically, the reaction term arises from a population dynamic model. We use mainly bifurcation methods to obtain our
Delgado Delgado, Manuel (Coordinador)   +4 more
core   +1 more source

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