Results 81 to 90 of about 159,057 (193)

Nonlinear eigenvalue Neumann problems with discontinuities

open access: yesJournal of Mathematical Analysis and Applications, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Pointwise bounds for positive supersolutions of nonlinear elliptic problems involving the p-Laplacian

open access: yesElectronic Journal of Differential Equations, 2017
We derive a priori bounds for positive supersolutions of $-\Delta_p u = \rho(x) f(u)$, where p >1 and $\Delta_p$ is the p-Laplace operator, in a smooth bounded domain of $\mathbb{R}^N$ with zero Dirichlet boundary conditions. We apply our results to
Asadollah Aghajani   +1 more
doaj  

Randomized Sketching of Nonlinear Eigenvalue Problems

open access: yesSIAM Journal on Scientific Computing
Rational approximation is a powerful tool to obtain accurate surrogates for nonlinear functions that are easy to evaluate and linearize. The interpolatory adaptive Antoulas--Anderson (AAA) method is one approach to construct such approximants numerically.
Stefan Güttel   +2 more
openaire   +3 more sources

Note on a Nonlinear Eigenvalue Problem [PDF]

open access: yesProceedings of the American Mathematical Society, 1963
1. V. F. Cowling, Walter Leighton and W. J. Thron, Twin convergence regions for continued fractions, Bull. Amer. Math. Soc. 50 (1944), 351-357. 2. R. E. Lane, Absolute convergence of continued fractions, Proc. Amer. Math. Soc. 3 (1952), 904-913. 3. R. E. Lane and H. S. Wall, Continued fractions with absolutely convergent even and odd parts, Trans. Amer.
openaire   +2 more sources

Existence of Solutions of a Discrete Fourth-Order Boundary Value Problem

open access: yesDiscrete Dynamics in Nature and Society, 2010
Let a,b be two integers with b-a≥5 and let 𝕋2={a+2,a+3,…,b-2}. We show the existence of solutions for nonlinear fourth-order discrete boundary value problem Δ4u(t-2)=f(t,u(t), Δ2u(t-1)), t∈𝕋2, u(a+1)=u(b-1)=Δ2u(a)=Δ2u(b-2)=0 under a ...
Ruyun Ma, Chenghua Gao, Yongkui Chang
doaj   +1 more source

Finite element approximation of the first eigenvalue of a nonlinear problem for some special domain

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2000
In this paper we present a method for the numerical approximation of the smallest eigenvalue of a nonlinear eigenvalue problem using the finite element method.
Gabriella Bognár
doaj   +1 more source

Second Eigenfunctions of Nonlinear Eigenvalue Problems

open access: yesJournal of Mathematical Analysis and Applications, 1995
The author considers the eigenvalue problem (1) \(g'(u) = \lambda f' (u)\) where \(f\) and \(g\) are Fréchet differentiable functionals on a Hilbert space \(H\). A particular case of (1) is a linear equation \(Au = \lambda u\) where \(A\) is a weakly continuous selfadjoint linear operator on \(H\).
openaire   +1 more source

Three solutions for quasilinear equations in Rn near resonance

open access: yesElectronic Journal of Differential Equations, 2001
We use minimax methods to prove the existence of at least three solutions for a quasilinear elliptic equation in $mathbb {R}^n$ near resonance.
Pablo De Napoli, Maria Cristina Mariani
doaj  

Eigenvalue Problem for Nonlinear Fractional Differential Equations with Integral Boundary Conditions

open access: yesAbstract and Applied Analysis, 2014
By employing known Guo-Krasnoselskii fixed point theorem, we investigate the eigenvalue interval for the existence and nonexistence of at least one positive solution of nonlinear fractional differential equation with integral boundary conditions.
Guotao Wang, Sanyang Liu, Lihong Zhang
doaj   +1 more source

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