Results 11 to 20 of about 1,211,113 (146)

FUCIK SPECTRUM FOR A THIRD ORDER BOUNDARY VALUE PROBLEM [PDF]

open access: yesPesquimat, 2014
In this work, the Fucik Spectrum for the boundary value problem is studied, and the Fucik curves contained in this spectrum are described.
Santiago César Rojas Romero
doaj   +6 more sources

THE FUCIK SPECTRUM FOR A COUPLED SYSTEM WITH NO CHANGING SIGN SOLUTIONS [PDF]

open access: yesPesquimat, 2014
In this work we study the Fucik spectrum for the following system of secondorder ordinary differential equations where Bu = 0 represents the Dirichlet or Newmann type boundary conditions.
Santiago César Rojas Romero
doaj   +6 more sources

On the Fučík spectrum of the Laplacian on a torus [PDF]

open access: yesJournal of Functional Analysis, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
E. Massa, B. Ruf
openaire   +3 more sources

New properties of the Fučík spectrum [PDF]

open access: yesComptes Rendus. Mathématique, 2013
In this Note we present some results on the Fučík spectrum for the Laplace operator, that give new information on its structure. In particular, these results show that, if Ω is a bounded domain of R
R. Molle, PASSASEO, Donato
openaire   +4 more sources

Fucik spectrum with weights and existence of solutions for nonlinear elliptic equations with nonlinear boundary conditions [PDF]

open access: yesElectronic Journal of Differential Equations, 2023
We consider the boundary value problem $$\displaylines{ - \Delta u + c(x) u = \alpha m(x) u^+ - \beta m(x) u^- +f(x,u), \quad x \in \Omega, \cr \frac{\partial u}{\partial \eta} + \sigma (x) u =\alpha \rho (x) u^+- \beta \rho (x) u^- +g(x,u), \quad x \in \partial \Omega, }$$ where \((\alpha, \beta) \in \mathbb{R}^2\), \(c, m \in L^\infty (\Omega ...
Nsoki Mavinga   +2 more
doaj   +4 more sources

On the Fucik spectrum for elliptic systems

open access: yes, 2006
We propose an extension of the concept of Fucik spectrum to the case of coupled systems of two elliptic equations, we study its structure and some applications. We show that near a simple eigenvalue of the system, the Fucik spectrum consists (after a suitable reparametrization) of two (maybe coincident) 2-dimensional surfaces.
E. Massa, B.Ruf
core   +5 more sources

Resonance problems with respect to the Fucik spectrum of the p-Laplacian [PDF]

open access: yesElectronic Journal of Differential Equations, 2002
We solve resonance problems with respect to the Fucik spectrum of the $p$-Laplacian using variational methods.
Kanishka Perera
doaj   +3 more sources

Various Half‐Eigenvalues of Scalar p‐Laplacian with Indefinite Integrable Weights

open access: yesAbstract and Applied Analysis, Volume 2009, Issue 1, 2009., 2009
Consider the half‐eigenvalue problem (ϕp(x′))′+λa(t)ϕp(x+)−λb(t)ϕp(x−)=0 a.e. t ∈ [0, 1], where 1 < p < ∞, ϕp(x) = |x|p−2x, x±(⋅) = max {±x(⋅), 0} for x ∈ 𝒞0 : = C([0, 1], ℝ), and a(t) and b(t) are indefinite integrable weights in the Lebesgue space ℒγ : = Lγ([0, 1], ℝ), 1 ≤ γ ≤ ∞.
Wei Li, Ping Yan, Pavel Drabek
wiley   +4 more sources

Generic properties of the Fucik spectrum of elliptic operators

open access: yesProceedings of the Royal Society of Edinburgh: Section A Mathematics, 2000
Given a bounded smooth domain Ω ⊂ Rn, n ≥ 2, and a second-order elliptic self-adjoint operator A on Ω, the set of points (α, β) ∈ R2 for which the problem Au = αu+ − βu- in Ω, u = 0 on ∂Ω (where u± = max{±u, 0}), has a non-trivial solution is called the Fucik spectrum of A.
Rynne, B. P.; id_orcid
openaire   +3 more sources

An extended variational characterization of the Fučík Spectrum for the p-Laplace operator

open access: yesCalculus of Variations and Partial Differential Equations, 2020
The authors investigate the Fučík spectrum \(\Sigma\) of the \(p\)-Laplacian, i.e., pairs of parameters \(\alpha\) and \(\beta\) for which the zero Dirichlet problem for the equation \(-\Delta_p u = \alpha |u|^{p-2} u^+ - \beta |u|^{p-2} u^-\) in a bounded domain \(\Omega\) has a nontrivial solution.
Drábek, Pavel, Robinson, Stephen B.
openaire   +5 more sources

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