Results 31 to 40 of about 12,436 (145)
Antimaximum principle for elliptic problems with weight
Electronic Journal of Differential Equations, 1999 This paper is concerned with the antimaximum principle for the linear problem with weight $-Delta u = lambda m(x) u +h(x)$, under Dirichlet or Neumann boundary conditions.
T. Godoy, J.-P. Gossez, S. Paczka
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Steklov problem with an indefinite weight for the p-Laplacian
Electronic Journal of Differential Equations, 2005 Let $Omegasubsetmathbb{R}^{N}$, with $Ngeq2$, be a Lipschitz domain and let 1 lees than p less than $infty$. We consider the eigenvalue problem $Delta_{p}u=0$ in $Omega$ and $| abla u|^{p-2}frac{partial u}{partial u}=lambda m|u|^{p-2}u$ on $partialOmega$
Olaf Torne
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On a positive solution for $(p,q)$-Laplace equation with Nonlinear
Boletim da Sociedade Paranaense de Matemática, 2019 In the presentp aper, we study the existence and non-existence results of a positive solution for the Steklov eigenvalue problem driven by nonhomogeneous operator $(p,q)$-Laplacian with indefinite weights. We also prove that in the case where $\mu>0$ and
Abdellah Zerouali +3 more
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Boletim da Sociedade Paranaense de Matemática, 2015 This work deals with an indefinite weight one dimensional eigenvalue problem of the p-Laplacian operator subject to Neumann boundary conditions. We are interested in some properties of the spectrum like simplicity, monotonicity and strict monotonicity ...
Ahmed Dakkak +2 more
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A spectral problem with an indefinite weight for an elliptic system
Electronic Journal of Differential Equations, 1997 We establish the completeness and the summability in the sense of Abel-Lidskij of the root vectors of a non-selfadjoint elliptic problem with an indefinite weight matrix and the angular distribution of its eigenvalues.
Mamadou Sango
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Fixed points for planar maps with multiple twists, with application to nonlinear equations with indefinite weight. [PDF]
Philos Trans A Math Phys Eng Sci, 2021 Margheri A, Rebelo C, Zanolin F.
europepmc +1 more source
On the spectrum of the p-biharmonic operator
Electronic Journal of Differential Equations, 2002 This work is devoted to the study of the spectrum for p-biharmonic operator with an indefinite weight in a bounded domain.
Abdelouahed El Khalil +2 more
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On a class of fractional \(p(x,y)-\)Kirchhoff type problems with indefinite weight
CuboThis paper is concerned with a class of fractional \(p(x,y)-\)Kirchhoff type problems with Dirichlet boundary data along with indefinite weight of the following form \begin{equation*} \left\lbrace\begin{array}{ll} M\left(\int_{Q}\frac{1}{p(x,y)}\frac{|
Seyed Mostafa Sajjadi +1 more
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A global bifurcation result of a Neumann problem with indefinite weight
Electronic Journal of Qualitative Theory of Differential Equations, 2004 This paper is concerned with the bifurcation result of nonlinear Neumann problem \begin{equation} \left\{\begin{array}{lll} -\Delta_p u=& \lambda m(x)|u|^{p-2}u + f(\lambda,x,u)& \mbox{in} \ \Omega\\ \frac{\partial u}{\partial \nu}\hspace{0.55cm}= & 0 &
Abdelouahed El Khalil, M. Ouanan
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A minimax formula for the principal eigenvalues of Dirichlet problems and its applications
Electronic Journal of Differential Equations, 2007 A minimax formula for the principal eigenvalue of a nonselfadjoint Dirichlet problem was established in [8,18]. In this paper we generalize this formula to the case where an indefinite weight is present.
Tomas Godoy +2 more
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