Results 21 to 30 of about 15,562 (203)

SEMILINEAR ELLIPTIC EQUATIONS IN UNBOUNDED SYMMETRIC DOMAINS

open access: yesTaiwanese Journal of Mathematics, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Tzeng, Shyuh-yaur, Wang, Hwai-chiuan
openaire   +2 more sources

On the existence of a positive solution for a semilinear elliptic equation in the upper half space

open access: yesAbstract and Applied Analysis, 2002
We show the existence of a nontrivial solution to the semilinear elliptic equation −Δu+u=b(x)|u|p−2u, u>0,  u∈H01(ℝ+N) under some suitable conditions.
Chen Shaowei, Li Yongqing
doaj   +1 more source

On some properties of a system of nonlinear partial functional differential equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We consider a system of a semilinear hyperbolic functional differential equation (where the lower order terms contain functional dependence on the unknown function) with initial and boundary conditions and a quasilinear elliptic functional differential ...
László Simon
doaj   +1 more source

Oscillatory Radial Solutions of Semilinear Elliptic Equations

open access: yesJournal of Mathematical Analysis and Applications, 1997
We study the oscillatory behavior of radial solutions of the nonlinear partial differential equation Δu + f(u) + g(|x|, u) = 0 inRn, where f and g are continuous restoring functions, uf(u) > 0 and ug(|x|, u) > 0 for u ≠ 0. We assume that for fixedq limu → 0(|f(u)|/|u|q) = B > 0, for 1 < q < n/(n − 2), and, additionally, that 2F(u) ≥ (1 − 2/n)uf(u) when
Derrick, William R.   +2 more
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A Priori Bounds And Existence Of Positive Solutions For Semilinear Elliptic Systems [PDF]

open access: yes, 2017
We provide a-priori L∞ bounds for classical positive solutions of semilinear elliptic systems in bounded convex domains when the nonlinearities are below the power functions v^p and u^q for any (p,q) lying on the critical Sobolev hyperbola.
Mavinga, Nsoki, Pardo, R.
core   +2 more sources

Semilinear Elliptic Equations Involving Fractional Hardy Operators

open access: yes, 2023
Our aim in this article is to study semilinear elliptic equations involving a fractional Hardy operator, an absorption and a Radon source in a weighted distributional sense. We show various scenarios, produced by the combined effect of the fractional Hardy potential, the growth of the absorption term and the concentration of the measure, in which ...
Chen, Huyuan   +2 more
openaire   +2 more sources

Uniqueness of semilinear elliptic inverse problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We consider the uniqueness of the inverse problem for a semilinear elliptic differential equation with Dirichlet condition. The necessary and sufficient condition of unique solution is obtained.
Chaochun Qu, Ping Wang
doaj   +1 more source

Some maximum principles in semilinear elliptic equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
We develop maximum principles for functions defined on the solutions to a class of semilinear, second order, uniformly elliptic partial differential equations. These principles are related to recent theorems of Protter and Protter and Weinberger and to a technique initiated by Payne for the determination of gradient bounds on the solution of the ...
openaire   +1 more source

Superconvergence for Neumann boundary control problems governed by semilinear elliptic equations [PDF]

open access: yes, 2013
This paper is concerned with the discretization error analysis of semilinear Neumann boundary control problems in polygonal domains with pointwise inequality constraints on the control.
Krumbiegel, Klaus, Pfefferer, Johannes
core   +1 more source

On Singular Semilinear Elliptic Equations

open access: yesJournal of Mathematical Analysis and Applications, 1993
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

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