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Nodal solutions of a p-Laplacian equation
Proceedings of the London Mathematical Society, 2005Summary: We prove that the \(p\)-Laplacian problem \(-\Delta_p u = f(x, u)\), with \(u \in W_0^{1,p}(\Omega)\) on a bounded domain \(\Omega \subset \mathbb R^N\), with \(p > 1\) arbitrary, has a nodal solution provided that \(f : \Omega\times\mathbb R \to \mathbb R\) is subcritical, and \(f(x, t) / |t|^{p-2}\) is superlinear.
Thomas Bartsch +2 more
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Solution of inverse nodal problems
Inverse Problems, 1989We show that the coefficients in a second-order differential equation can be determined from the positions of the nodes for the eigenfunctions. We prove uniqueness results, derive approximate solutions, give error bounds and present numerical experiments.
Hald, Ole H., McLaughlin, Joyce R.
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On the Geometric Measure of Nodal Sets of Solutions
Journal of Partial Differential Equations, 1994The authors prove several results on the Hausdorff measure of nodal sets of solutions \(u\) of the equation \(Lu=0\) in the unit ball \(B\subset \mathbb{R}^ n\). Here \(L\) belongs to a special class of elliptic or parabolic operators and \(u\) is assumed to have a certain compactness property.
Han, Qing, Lin, Fanghua
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Localized Nodal Solutions for Schrödinger-Poisson Systems
Acta Mathematica Scientia, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Xing, He, Rui, Liu, Xiangqing
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Nodal Solutions for Indefinite Robin Problems
Bulletin of the Malaysian Mathematical Sciences Society, 2017Given a bounded domain \(\Omega \subseteq \mathbb{R}^N\) with a \(C^2\)-boundary, the authors study semilinear Robin problems of the form \[ \begin{cases} -\Delta u(z)+\xi(z)u(z) = f(z,u(z)) &\text{in }\Omega,\\ \frac{\partial u}{\partial n}+\beta(z)u=0 &\text{on }\partial \Omega, \end{cases} \] where the potential function \(\xi\) belongs to \(L^s ...
Filippakis, Michael +1 more
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Nodal solutions of -Laplacian equations
Nonlinear Analysis: Theory, Methods & Applications, 2007The aim of this paper is to study the existence of nodal radial solutions for the \(p(x)\)-Laplacian equation of the form \[ \begin{gathered} -\text{div}(|\nabla |^{p(x)-2}\nabla u)+ a(x)|u|^{p(x)-2} u=|u|^{q(x)- 2} u\quad\text{in }\Omega,\\ u\in W^{1,p(x)}_0(\Omega).\end{gathered}\tag{1} \] Using a variational method, the authors prove that, for any ...
Fan, Xianling, Zhao, Yuanzhang
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Nodal solutions for anisotropic \((p, q)\)-equations
Nonlinear Analysis: Real World Applications, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zeng, Shengda, Papageorgiou, Nikolaos S.
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Nonexistence of nodal solutions of nonlinear elliptic equations
Nonlinear Analysis: Theory, Methods & Applications, 2001zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bae, Soohyun, Pahk, Dae Hyeon
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ON NODAL SOLUTIONS OF THE NONLINEAR SCHRÖDINGER–POISSON EQUATIONS
Communications in Contemporary Mathematics, 2012In this paper, we are interested in nodal solutions of nonlinear Schrödinger–Poisson equations. In particular, for a given natural number k we construct a radial solution changing sign exactly k-times.
Kim, Seunghyeok, Seok, Jinmyoung
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