Search Results - "Fleckinger, J."
-
1
Global solution branches for p-Laplacian boundary value problems
Published in Nonlinear analysis (01-07-2005)“…We study global continua of positive solutions of the boundary value problem - Δ p u = λ ( 1 + u q ) in a bounded smooth domain Ω ⊂ R n with zero Dirichlet…”
Get full text
Journal Article -
2
Dynamics of the Ginzburg-Landau equations of superconductivity
Published in Nonlinear analysis (1998)Get full text
Journal Article -
3
Boundary Value Problems for the q - Laplacian on N
Published in Mathematische Nachrichten (01-04-2001)“…Nonlinear boundary value problems for the q–Laplacian in spaces of constant positive curvature are considered. The nonlinearity is of the form of a power…”
Get full text
Journal Article -
4
Principal Eigenvalues for Problems with Indefinite Weight Function on RN
Published in Proceedings of the American Mathematical Society (01-05-1990)“…We investigate the existence of positive principal eigenvalues of the problem -Δ u(x) = λ g(x)u for x ∈ Rn; u(x) → 0 as x → ∞ where the weight function g…”
Get full text
Journal Article -
5
Blow up of the solutions to a linear elliptic system involving Schr{\"o}dinger operators
Published 11-01-2019“…Monografias Matematicas Garcia de Galdeano, Prensas Universitarias de Zaragoza, 2016 We show how the solutions to a $2\times2$ linear system involving…”
Get full text
Journal Article -
6
Existence of Positive Solutions for a Nonvariational Quasilinear Elliptic System
Published in Journal of Differential Equations (20-09-2000)Get full text
Journal Article -
7
Estimate of the validity interval for the Antimaximum Principle and application to a non-cooperative system
Published 11-01-2019“…Rostocker Mathematisches Kolloquium, Universit{\"a}t Rostock, 2016 We are concerned with the sign of the solutions of non-cooperative systems when the…”
Get full text
Journal Article -
8
Bifurcation for an elliptic system coupled in the linear part
Published in Nonlinear analysis (01-07-1999)Get full text
Journal Article -
9
Heat Equation on the Triadic Von Koch Snowflake: Asymptotic and Numerical Analysis
Published in Proceedings of the London Mathematical Society (01-09-1995)Get full text
Journal Article -
10
Semilinear cooperative elliptic systems on Rn
Published in Rendiconti di matematica e delle sue applicazioni (1981) (01-01-1995)“…We study here the following semilinear cooperative elliptic system defined on IRn , n > 2 : (1 – a) −∆u = aρ(x)u + bρ(x)v + f(x, u, v) x ∈ IRn , (1 – b) −∆v =…”
Get full text
Journal Article -
11
Boundary Value Problems for theq — Laplacian on N
Published in Mathematische Nachrichten (01-04-2001)Get full text
Journal Article -
12
Eigenvalues of Elliptic Boundary Value Problems With an Indefinite Weight Function
Published in Transactions of the American Mathematical Society (1986)“…We consider general selfadjoint elliptic eigenvalue problems \begin{equation*}\tag{P} \mathcal{A}u = \lambda r(x)u,\end{equation*} in an open set$\Omega…”
Get full text
Journal Article -
13
Principal Eigenvalues for Problems with Indefinite Weight Function on R N
Published in Proceedings of the American Mathematical Society (01-05-1990)Get full text
Journal Article -
14
Principal eigenvalues for problems with indefinite weight function on ⁿ
Published in Proceedings of the American Mathematical Society (01-01-1990)“…We investigate the existence of positive principal eigenvalues of the problem − Δ u ( x ) = λ g ( x ) u - \Delta u(x) = \lambda g(x)u for x ∈ R n ; u ( x ) → 0…”
Get full text
Journal Article -
15
Eigenfunctions and Hardy inequalities for a magnetic Schrödinger operator in ℝ 2
Published in Mathematical methods in the applied sciences (10-09-2003)“…The zero set { z ∈ℝ 2 :ψ( z )=0} of an eigenfunction ψ of the Schrödinger operator ℒ︁ V =(i∇+ A ) 2 + V on L 2 (ℝ 2 ) with an Aharonov–Bohm‐type magnetic…”
Get full text
Journal Article -
16
On the fundamental eigenvalue ratio of the p-Laplacian
Published 31-10-2004“…It is shown that the fundamental eigenvalue ratio \lambda_2 / \lambda_1 of the p-Laplacian is bounded by a quantity depending only on the dimension N and p…”
Get full text
Journal Article -
17
Remainder estimates for the asymptotics of elliptic eigenvalue problems with indefinite weights
Published in Archive for rational mechanics and analysis (01-01-1987)Get full text
Journal Article -
18
An Example of a Two-Term Asymptotics for the "Counting Function" of a Fractal Drum
Published in Transactions of the American Mathematical Society (1993)“…In this paper we study the spectrum of the Dirichlet Laplacian in a bounded domain$\Omega \subset {\Bbb R}^{n}$with fractal boundary ∂Ω. We construct an open…”
Get full text
Journal Article -
19
On the spectrum and the distribution of singular values of Schrödinger operators with a complex potential
Published in Proceedings of the Royal Society of London. Series A, Mathematical and physical sciences (08-07-1983)“…This paper is concerned with spectral properties of the Schrödinger operator ─ ∆+q with a complex potential q which has non-negative real part and satisfies…”
Get full text
Journal Article