Results 11 to 20 of about 223,135 (271)

Infinitely many solutions of degenerate quasilinear Schrödinger equation with general potentials

open access: yesBoundary Value Problems, 2021
In this paper, we study the following quasilinear Schrödinger equation: − div ( a ( x , ∇ u ) ) + V ( x ) | x | − α p ∗ | u | p − 2 u = K ( x ) | x | − α p ∗ f ( x , u ) in  R N , $$ -\operatorname{div}\bigl(a(x,\nabla u)\bigr)+V(x) \vert x \vert ...
Yan Meng, Xianjiu Huang, Jianhua Chen
doaj   +1 more source

Periodic segment implies infinitely many periodic solutions [PDF]

open access: yesProceedings of the American Mathematical Society, 2007
The authors of this note show that given a periodic segment for a nonautonomous ODE with periodic coefficients (i.e. a local process) and given a sequence of associated Lefschetz numbers that is not constant, then there exist infinitely many periodic solutions in the segment. The proof is based on the Shub-Sullivan theorem, see \textit{M.
Marzantowicz, Waclaw, Wójcik, Klaudiusz
openaire   +3 more sources

Infinitely many solutions for a gauged nonlinear Schrödinger equation with a perturbation

open access: yesNonlinear Analysis, 2021
In this paper, we use the Fountain theorem under the Cerami condition to study the gauged nonlinear Schrödinger equation with a perturbation in R2. Under some appropriate conditions, we obtain the existence of infinitely many high energy solutions for ...
Jiafa Xu, Jie Liu, Donal O'Regan
doaj   +1 more source

INFINITELY MANY SOLUTIONS FOR A NONLOCAL PROBLEM

open access: yesJournal of Applied Analysis & Computation, 2020
Summary: Consider a class of nonlocal problems \[ \begin{cases} -(a-b\int_{\Omega}|\nabla u|^2dx)\Delta u= f(x,u),\quad &x \in\Omega, \\ u=0, & x \in\partial\Omega, \end{cases} \] where \(a>0\), \(b>0\), \(\Omega\subset \mathbb{R}^N\) is a bounded open domain, \(f:\overline{\Omega} \times \mathbb R \longrightarrow \mathbb R\) is a Carathéodory function.
Tang, Zhiyun, Ou, Zengqi
openaire   +1 more source

Infinitely many non-radial solutions for a Choquard equation

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we consider the non-linear Choquard equation −Δu+V(∣x∣)u=∫R3∣u(y)∣2∣x−y∣dyuinR3,-\Delta u+V\left(| x| )u=\left(\mathop{\int }\limits_{{{\mathbb{R}}}^{3}}\frac{| u(y){| }^{2}}{| x-y| }{\rm{d}}y\right)u\hspace{1.0em}\hspace{0.1em}\text{in}\
Gao Fashun, Yang Minbo
doaj   +1 more source

A sequence of positive solutions for sixth-order ordinary nonlinear differential problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
Infinitely many solutions for a nonlinear sixth-order differential equation are obtained. The variational methods are adopted and an oscillating behaviour on the nonlinear term is required, avoiding any symmetry assumption.
Gabriele Bonanno, Roberto Livrea
doaj   +1 more source

On a fractional differential equation with infinitely many solutions [PDF]

open access: yes, 2012
We present a set of restrictions on the fractional differential equation $x^{(\alpha)}(t)=g(x(t))$, $t\geq0$, where $\alpha\in(0,1)$ and $g(0)=0$, that leads to the existence of an infinity of solutions starting from $x(0)=0$. The operator $x^{(\alpha)}$
Băleanu, Dumitru   +2 more
core   +2 more sources

Infinitely many periodic solutions for second order Hamiltonian systems [PDF]

open access: yes, 2011
In this paper, we study the existence of infinitely many periodic solutions for second order Hamiltonian systems $\ddot{u}+\nabla_u V(t,u)=0$, where $V(t, u)$ is either asymptotically quadratic or superquadratic as $|u|\to \infty$.Comment: to appear in ...
Liu, Chungen, Zhang, Qingye
core   +1 more source

Integrable subsystem of Yang--Mills dilaton theory [PDF]

open access: yes, 2007
With the help of the Cho-Faddeev-Niemi-Shabanov decomposition of the SU(2) Yang-Mills field, we find an integrable subsystem of SU(2) Yang-Mills theory coupled to the dilaton.
A Wereszczyński   +7 more
core   +2 more sources

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