Results 31 to 40 of about 349 (74)

The existence of positive solutions for Kirchhoff-type problems via the sub-supersolution method

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018
In this paper we discuss the existence of a solution between wellordered subsolution and supersolution of the Kirchhoff equation. Using the sub-supersolution method together with a Rabinowitz-type global bifurcation theory, we establish the existence of ...
Yan Baoqiang   +2 more
doaj   +1 more source

Positive radial symmetric solutions for a class of elliptic problems with critical exponent and -1 growth

open access: yesAdvances in Nonlinear Analysis, 2021
In this paper, we consider a class of semilinear elliptic equation with critical exponent and -1 growth. By using the critical point theory for nonsmooth functionals, two positive solutions are obtained. Moreover, the symmetry and monotonicity properties
Lei Chun-Yu, Liao Jia-Feng
doaj   +1 more source

Asymptotic behavior and existence of solutions for singular elliptic equations [PDF]

open access: yes, 2019
We study the asymptotic behavior, as $\gamma$ tends to infinity, of solutions for the homogeneous Dirichlet problem associated to singular semilinear elliptic equations whose model is $$ -\Delta u=\frac{f(x)}{u^\gamma}\,\text{ in }\Omega, $$ where ...
Durastanti, Riccardo
core   +2 more sources

On the local behavior of local weak solutions to some singular anisotropic elliptic equations

open access: yesAdvances in Nonlinear Analysis, 2022
We study the local behavior of bounded local weak solutions to a class of anisotropic singular equations of the kind ∑i=1s∂iiu+∑i=s+1N∂i(Ai(x,u,∇u))=0,x∈Ω⊂⊂RNfor1≤s≤(N−1),\mathop{\sum }\limits_{i=1}^{s}{\partial }_{ii}u+\mathop{\sum }\limits_{i=s+1}^{N}{\
Ciani Simone   +2 more
doaj   +1 more source

Singular quasilinear elliptic systems in $\mathbb{R}^N$

open access: yes, 2018
The existence of positive weak solutions to a singular quasilinear elliptic system in the whole space is established via suitable a priori estimates and Schauder's fixed point ...
Marano, S. A., Marino, G., Moussaoui, A.
core   +1 more source

A semilinear problem with a W^{1,1}_0 solution

open access: yes, 2012
We study a degenerate elliptic equation, proving the existence of a W^{1,1}_0 distributional ...
Boccardo, Lucio   +2 more
core   +2 more sources

Mean field equations, hyperelliptic curves and modular forms: II [PDF]

open access: yes, 2016
A pre-modular form $Z_n(\sigma; \tau)$ of weight $\tfrac{1}{2} n(n + 1)$ is introduced for each $n \in \Bbb N$, where $(\sigma, \tau) \in \Bbb C \times \Bbb H$, such that for $E_\tau = \Bbb C/(\Bbb Z + \Bbb Z \tau)$, every non-trivial zero of $Z_n(\sigma;
Lin, Chang-Shou, Wang, Chin-Lung
core   +3 more sources

Multiple Aharonov--Bohm eigenvalues: the case of the first eigenvalue on the disk

open access: yes, 2018
It is known that the first eigenvalue for Aharonov--Bohm operators with half-integer circulation in the unit disk is double if the potential's pole is located at the origin. We prove that in fact it is simple as the pole $a\neq 0$
Abatangelo, Laura
core   +1 more source

Convexity Property of Finsler Infinity Harmonic Functions

open access: yesInternational Journal of Differential Equations, Volume 2024, Issue 1, 2024.
In this paper, we investigate the convexity property of viscosity solutions to a homogeneous normalized Finsler infinity Laplacian equation. Weak and strong forms for convexity property have been addressed.
Benyam Mebrate, Sining Zheng
wiley   +1 more source

A uniqueness result for the fractional Schrödinger-Poisson system with strong singularity

open access: yesOpen Mathematics
This article considers existence of solution for a class of fractional Schrödinger-Poisson system. By using the Nehari method and the variational method, we obtain a uniqueness result for positive solutions.
Wang Li   +4 more
doaj   +1 more source

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