Results 21 to 30 of about 35,706 (291)

A priori bounds for positive radial solutions of quasilinear equations of Lane–Emden type [PDF]

open access: yes, 2023
summary:We consider the quasilinear equation $\Delta _p u +K(|x|)u^q=0$, and present the proof of the local existence of positive radial solutions near $0$ under suitable conditions on $K$.
Bae, Soohyun
core   +1 more source

Existence of entire explosive positive radial solutions of quasilinear elliptic systems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We show the existence of entire explosive positive radial solutions for quasilinear elliptic systems div(|∇u|m−2∇u)=p(|x|)g(v), div(|∇v|n−2∇v)=q(|x|)f(u) on RN, where f and g are positive and non-decreasing functions on (0,∞) satisfying the Keller ...
Yang Zuodong
doaj   +2 more sources

RADIAL SYMMETRY OF POSITIVE SOLUTIONS TO EQUATIONS INVOLVING THE FRACTIONAL LAPLACIAN [PDF]

open access: yesCommunications in Contemporary Mathematics, 2014
The aim of this paper is to study radial symmetry and monotonicity properties for positive solution of elliptic equations involving the fractional Laplacian. We first consider the semi-linear Dirichlet problem [Formula: see text] where (-Δ)αdenotes the fractional Laplacian, α ∈ (0, 1), and B1denotes the open unit ball centered at the origin in ℝNwith N
Felmer, Patricio, Wang, Ying
openaire   +6 more sources

Positive radial solutions for Dirichlet problems with mean curvature operators in Minkowski space [PDF]

open access: yes, 2012
The first author is partially supported by a GENIL grant YTR-2011-7 (Spain) and by the grant PN-II-RU-TE-2011-3-0157 (Romania). The second author is partially supported by the grant PN-II-RU-TE-2011-3-0157 (Romania).
Bereanu, C.   +2 more
core   +1 more source

Positive radial solutions for a class of quasilinear Schrödinger equations in $\mathbb{R}^3$

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
This paper is concerned with the following quasilinear Schrödinger equations of the form: \begin{equation*} -\Delta u-u\Delta (u^2)+u=|u|^{p-2}u, \qquad x\in \mathbb{R}^3, \end{equation*} where $p\in\left(2,12\right)$.
Zhongxiang Wang, Gao Jia, Weifeng Hu
doaj   +1 more source

On a radial positive solution to a nonlocal elliptic equation

open access: yesTopological Methods in Nonlinear Analysis, 2003
The paper deals with Dirichlet boundary value problem for the nonlinear Poisson equation with nonlocal term \[ - \Delta u = f (u, \int_U g \circ u) \] \[ u| _{\partial U} = 0, \] where \(U\) is assumed to be an annulus or a ball. Existence of solutions is obtained via fixed point theorems for increasing compact operators.
Fijałkowski, Piotr, Przeradzki, Bogdan
openaire   +3 more sources

Infinitely many radial positive solutions for nonlocal problems with lack of compactness

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
We are concerned with the qualitative and asymptotic analysis of solutions to the nonlocal equation $$ (-\Delta)^su+V(|z|)u=Q(|z|)u^p\quad \text{in} \ \mathbb{R}^{N},$$ where $N\geq 3 ...
Fen Zhou   +2 more
doaj   +1 more source

Positive radial solutions for the elliptic boundary value problem with gradient terms on the unit ball

open access: yes四川大学学报. 自然科学版, 2021
We consider the existence of positive radial solutions to a class of elliptic boundary value problem with gradient term. The existence of positive radial solutions is obtained by using the Leray-Schauder fixed point theorem.
TANG Ying, LI Yong-Xiang
doaj  

Positive radial solutions to a ‘semilinear’ equation involving the Pucci's operator

open access: yesJournal of Differential Equations, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Felmer Aichele, Patricio   +1 more
openaire   +3 more sources

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