Results 11 to 20 of about 290 (58)

Landesman-Lazer condition revisited: the influence of vanishing and oscillating nonlinearities [PDF]

open access: yes, 2015
In this paper we deal with semilinear problems at resonance. We present a sufficient condition for the existence of a weak solution in terms of the asymptotic properties of nonlinearity.
Drabek, Pavel, Langerova, Martina
core   +8 more sources

Critical Points for Elliptic Equations with Prescribed Boundary Conditions [PDF]

open access: yes, 2017
This paper concerns the existence of critical points for solutions to second order elliptic equations of the form $\nabla\cdot \sigma(x)\nabla u=0$ posed on a bounded domain $X$ with prescribed boundary conditions. In spatial dimension $n=2$, it is known
Alberti, Giovanni S.   +2 more
core   +2 more sources

Absence of Critical Points of Solutions to the Helmholtz Equation in 3D [PDF]

open access: yes, 2016
The focus of this paper is to show the absence of critical points for the solutions to the Helmholtz equation in a bounded domain $\Omega\subset\mathbb{R}^{3}$, given by \[ \left\{ \begin{array}{l} -\rm{div}(a\,\nabla u_{\omega}^{g})-\omega qu_{\omega ...
Alberti, Giovanni S.
core   +2 more sources

On a class of nonlocal nonlinear Schrödinger equations with potential well

open access: yesAdvances in Nonlinear Analysis, 2019
In this paper we investigate the existence, multiplicity and asymptotic behavior of positive solution for the nonlocal nonlinear Schrödinger equations. We exploiting the relationship between the Nehari manifold and eigenvalue problems to discuss how the ...
Wu Tsung-fang
doaj   +1 more source

Combined effects of Choquard and singular nonlinearities in fractional Kirchhoff problems

open access: yesAdvances in Nonlinear Analysis, 2020
The aim of this paper is to study the existence and multiplicity of solutions for a class of fractional Kirchho problems involving Choquard type nonlinearity and singular nonlinearity.
Wang Fuliang, Hu Die, Xiang Mingqi
doaj   +1 more source

Smoothness of solutions of a convolution equation of restricted type on the sphere

open access: yesForum of Mathematics, Sigma, 2021
Let $\mathbb {S}^{d-1}$ denote the unit sphere in Euclidean space $\mathbb {R}^d$, $d\geq 2$, equipped with surface measure $\sigma _{d-1}$. An instance of our main result concerns the regularity of solutions of the convolution equation $$\begin{align*}a\
Diogo Oliveira e Silva, René Quilodrán
doaj   +1 more source

Infinitely many periodic solutions for ordinary p-Laplacian systems

open access: yesAdvances in Nonlinear Analysis, 2015
Some existence theorems are obtained for infinitely many periodic solutions of ordinary p-Laplacian systems by minimax methods in critical point theory.
Li Chun, Agarwal Ravi P., Tang Chun-Lei
doaj   +1 more source

Normalized solutions of Kirchhoff equations with Hartree-type nonlinearity

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
In the present paper, we prove the existence of the solutions (λ, u) ∈ ℝ × H1(ℝ3) to the following Kirchhoff equations with the Hartree-type nonlinearity under the general mass supercritical settings, {-(a+b∫ℝ3|∇u|2dx)Δu-λu=[Iα*(K(x)F(u))]K(x)f(u),u∈H1 ...
Yuan Shuai, Gao Yuning
doaj   +1 more source

Robust transitivity for endomorphisms admitting critical points [PDF]

open access: yes, 2015
We address the problem of giving necessary and sufficient conditions in order to have robustly transitive endomorphisms admitting persistent critical sets.
Iglesias, Jorge   +2 more
core   +1 more source

Local minimizers in spaces of symmetric functions and applications [PDF]

open access: yes, 2014
We study $H^1$ versus $C^1$ local minimizers for functionals defined on spaces of symmetric functions, namely functions that are invariant by the action of some subgroups of $\mathcal{O}(N)$.
Dos Santos   +3 more
core   +1 more source

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