Results 71 to 80 of about 12,585,660 (209)

Eigenvalue problems for a k-Hessian-type equation

Nonlinear Analysis
In this work, we focus on the eigenvalue problem for a class of k-Hessian-type equations. Under some suitable assumptions, we first determine the intervals of the parameter for the existence of nontrivial radial solutions.
Zedong Yang, Zhanbing Bai
doaj   +1 more source

Banded Matrices and Discrete Sturm-Liouville Eigenvalue Problems

Advances in Difference Equations, 2009
We consider eigenvalue problems for self-adjoint Sturm-Liouville difference equations of any even order. It is well known that such problems with Dirichlet boundary conditions can be transformed into an algebraic eigenvalue problem for a banded, real ...
Werner Kratz
doaj   +2 more sources

Nonlinear eigenvalue problems with semipositone structure

Electronic Journal of Differential Equations, 2000
In this paper we summarize the developments of semipositone problems to date, including very recent results on semipositone systems. We also discuss applications and open problems.
Alfonso Castro, C. Maya, R. Shivaji
doaj  

A class of degenerate elliptic eigenvalue problems

Advances in Nonlinear Analysis, 2013
We consider a general class of eigenvalue problems where the leading elliptic term corresponds to a convex homogeneous energy function that is not necessarily differentiable.
Lucia Marcello, Schuricht Friedemann
doaj   +1 more source

Turning Points and Eigenvalue Problems

Journal of Mathematical Analysis and Applications, 1996
The periodic boundary value problem for a linear O.D.E. \(\ddot x + \alpha \dot x + ({2 \pi \over T})^2x = \lambda f(t) x\) \((0 \leq t \leq T)\), \(x(0) = x(T)\), \(\dot x(0) = \dot x(T)\), with spectral parameter \(\lambda\) is studied. Here a damping coefficient \(\alpha \neq 0\) and a smooth \(T\)-periodic function \(f \neq 0\) are given, the ...
Stepanov E., Vavilov S. A.
openaire   +4 more sources

Solving Maxwell eigenvalue problems for accelerating cavities

Physical Review Special Topics. Accelerators and Beams, 2001
We investigate algorithms for computing steady state electromagnetic waves in cavities. The Maxwell equations for the strength of the electric field are solved by a mixed method with quadratic finite edge (Nédélec) elements for the field values and ...
Peter Arbenz, Roman Geus, Stefan Adam
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Orthonormal Bernstein Galerkin technique for computations of higher order eigenvalue problems. [PDF]

MethodsX, 2023
Farzana H, Bhowmik SK, Bhowmik SK, Islam MS.   +3 more
europepmc   +1 more source

Finite difference approximation of electron balance problem in the stationary high-frequency induction discharges

MATEC Web of Conferences, 2017
The problem of finding the minimal eigenvalue corresponding to a positive eigenfunction of the nonlinear eigenvalue problem for the ordinary differential equation with coefficients depending on a spectral parameter is investigated. This problem arises in
Solov´ev Sergey I., Solov´ev Pavel S., Chebakova Violetta Yu.   +2 more
doaj   +1 more source

Sensitivity Analysis of Eigenvalues for PDNT Toeplitz Matrices

Axioms
This study focuses on a class of perturbed Dirichlet–Neumann tridiagonal (PDNT) Toeplitz matrices, mainly exploring their eigenvalue sensitivity and inverse problems. By the explicit expressions for eigenvalues and eigenvectors of PDNT Toeplitz matrices,
Zhaolin Jiang, Hongxiao Chu, Qiaoyun Miao, Ziwu Jiang   +3 more
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NON LINEAR EIGENVALUE PROBLEMS

Matemática Contemporânea, 2004
In this paper we consider generalized eigenvalue problems for a family of operators with a polynomial dependence on a complex parameter. This problem is equivalent to a genuine non self-adjoint operator. We discuss here existence of non trivial eigenstates for models coming from analytic theory of smoothness for P.D.E.
openaire   +3 more sources