Results 11 to 20 of about 8,578,478 (315)
Radial positive solutions for a nonpositone problem in a ball
Electronic Journal of Differential Equations, 2009 In this paper, we study the existence of radial positive solutions for a nonpositone problem when the nonlinearity is superlinear and may have more than one zero.
Said Hakimi, Abderrahim Zertiti
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Nonexistence and Radial Symmetry of Positive Solutions of Semilinear Elliptic Systems [PDF]
Discrete Dynamics in Nature and Society, 2009 Nonexistence and radial symmetry of positive solutions for a class of semilinear elliptic systems are considered via the method of moving spheres.
Zhengce Zhang, Liping Zhu
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Radial positive solutions for a nonpositone problem in an annulus
Electronic Journal of Differential Equations, 2014 The main purpose of this article is to prove the existence of radial positive solutions for a nonpositone problem in an annulus when the nonlinearity is superlinear and has more than one zero.
Said Hakimi, Abderrahim Zertiti
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Positive radial solutions involving nonlinearities with zeros [PDF]
Discrete and Continuous Dynamical Systems, 2019 In this paper we consider the non-autonomous quasilinear elliptic problem \begin{document}$ \begin{cases} -\Delta_p u = \lambda |x|^{\delta} f(u) &\mbox{in }B_1(0)\\ u = 0 &\mbox{in }\partial B_1(0), \end{cases} $\end{document} where \begin{document}$ f:\
I. Flores, M. Franca, Leonelo Iturriaga
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Radial Positive Solutions for p-Laplacian Supercritical Neumann Problems
Bruno Pini Mathematical Analysis Seminar, 2017 This paper deals with existence and multiplicity of positive solutions for a quasilinear problem with Neumann boundary conditions. The problem is set in a ball and admits at least one constant non-zero solution; moreover, it involves a nonlinearity that ...
Francesca Colasuonno, Benedetta Noris
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Positive radial solutions of p-Laplace equations on exterior domains
AIMS Mathematics, 2021 : This paper deals with the existence of positive radial solutions of the p-Laplace equation −∆p u = K(|x|) f (u) , x ∈ Ω , ∂u ∂n = 0 , x ∈ ∂Ω, lim|x|→∞ u(x) = 0 , where Ω = {x ∈ RN : |x| > r0}, N ≥ 2, 1 < p < N, K : [r0, ∞) → R is ...
Yong-Xiang Li, Mei-Chun Wei
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Existence of positive radial solutions for a weakly coupled system via blow up [PDF]
Abstract and Applied Analysis, 1998 The existence of positive solutions to certain systems of ordinary differential equations is studied. Particular forms of these systems are satisfied by radial solutions of associated partial differential equations.
Marta García-Huidobro +2 more
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Open Mathematics, 2019 In this paper, we show the existence of an S-shaped connected component in the set of radial positive solutions of boundary value ...
Xu Man, Ma Ruyun
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Nonexistence of radial positive solutions for a nonpositone problem
Electronic Journal of Differential Equations, 2011 In this article we study the nonexistence of radial positive solutions for a nonpositone problem when the nonliearity is superlinear and has more than one zero.
Said Hakimi, Abderrahim Zertiti
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Existence of positive radial solutions for quasilinear elliptic equations and systems [PDF]
Electronic Journal of Differential Equations, 2016 Under simple conditions on f and g, we show that existence of positive radial solutions for the quasilinear elliptic equation $$ \hbox{div}(\phi_1(|\nabla u|) \nabla u)=a(|x|)f(u) \quad x\in \mathbb{R}^N, $$ and for the system $$\displaylines{
Zhijun Zhang
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