Results 21 to 30 of about 349 (74)

Nonlinear singular problems with indefinite potential term

open access: yes, 2020
We consider a nonlinear Dirichlet problem driven by a nonhomogeneous differential operator plus an indefinite potential. In the reaction we have the competing effects of a singular term and of concave and convex nonlinearities.
Papageorgiou, Nikolaos S.   +2 more
core   +2 more sources

On the eigenvalues of Aharonov-Bohm operators with varying poles [PDF]

open access: yes, 2013
We consider a magnetic operator of Aharonov-Bohm type with Dirichlet boundary conditions in a planar domain. We analyse the behavior of its eigenvalues as the singular pole moves in the domain.
Bonnaillie-Noël, Virginie   +3 more
core   +3 more sources

A singularity as a break point for the multiplicity of solutions to quasilinear elliptic problems

open access: yesAdvances in Nonlinear Analysis, 2020
In this paper we deal with the elliptic ...
López-Martínez Salvador
doaj   +1 more source

A note on the complete rotational invariance of biradial solutions to semilinear elliptic equations [PDF]

open access: yes, 2010
We investigate symmetry properties of solutions to equations of the form $$ -\Delta u = \frac{a}{|x|^2} u + f(|x|, u)$$ in R^N for $N \geq 4$, with at most critical nonlinearities.
Abatangelo, L., Terracini, S.
core   +1 more source

Nonexistence of positive radial solutions for a problem with singular potential

open access: yesAdvances in Nonlinear Analysis, 2014
This article completes the picture in the study of positive radial solutions in the function space 𝒟1,2(ℝN)∩L2(ℝN,|x|-αdx)∩Lp(ℝN)${{\mathcal {D}^{1,2}({\mathbb {R}^N}) \cap L^2({{\mathbb {R}^N}, | x |^{-\alpha } dx})\cap L^p({\mathbb {R}^N})}}$ for the ...
Catrina Florin
doaj   +1 more source

An elliptic system with logarithmic nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2017
In the present paper, we study the existence of solutions for some classes of singular systems involving the Δp⁢(x){\Delta_{p(x)}} and Δq⁢(x){\Delta_{q(x)}} Laplacian operators. The approach is based on bifurcation theory and the sub-supersolution method
Alves Claudianor   +2 more
doaj   +1 more source

On double phase Kirchhoff problems with singular nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2023
In this paper, we study multiplicity results for double phase problems of Kirchhoff type with right-hand sides that include a parametric singular term and a nonlinear term of subcritical growth.
Arora Rakesh   +3 more
doaj   +1 more source

On singular quasilinear elliptic equations with data measures

open access: yesAdvances in Nonlinear Analysis, 2021
The aim of this work is to study a quasilinear elliptic equation with singular nonlinearity and data measure. Existence and non-existence results are obtained under necessary or sufficient conditions on the data, where the main ingredient is the ...
Alaa Nour Eddine   +2 more
doaj   +1 more source

Spacetime singularity, singular bounds and compactness for solutions of the Poisson's equation

open access: yes, 2015
CarlosCesar ArandaBlue Angel Navire research laboratory,Rue Eddy 113 Gatineau, QC, Canadacarloscesar.aranda@gmail.comABSTRACTA black hole is a spacetime region in whose interior lies a structure known as a space-time singularity whose scientific ...
C. Aranda
semanticscholar   +1 more source

Asymptotic behavior and uniqueness of boundary blow-up solutions to elliptic equations [PDF]

open access: yes, 2014
In this paper, under some structural assumptions of weight function $b(x)$ and nonlinear term $f(u)$, we establish the asymptotic behavior and uniqueness of boundary blow-up solutions to semilinear elliptic equations \begin{equation*} \begin{cases ...
Tian, Qiaoyu, Xu, Yonglin
core   +3 more sources

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