Results 21 to 30 of about 764,891 (332)

Infinitely Many Solutions for a Robin Boundary Value Problem [PDF]

open access: yesInternational Journal of Differential Equations, 2010
By combining the embedding arguments and the variational methods, we obtain infinitely many solutions for a class of superlinear elliptic problems with the Robin boundary value under weaker conditions.
Aixia Qian, Chong Li
doaj   +3 more sources

Infinitely Many Traveling Wave Solutions of a Gradient System [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1987
We consider a system of equations of the form u t = u x x + ∇ F ( u ) {u_t} = {u_{xx}} + \nabla F(u) .
David Terman
openalex   +3 more sources

A construction of infinitely many solutions to the Strominger system [PDF]

open access: yesJournal of Differential Geometry, 2021
17 pages, comments welcome!
Fei, Teng   +2 more
openaire   +5 more sources

Infinitely many positive solutions of nonlinear Schrödinger equations [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2021
AbstractThe paper deals with the equation $$-\Delta u+a(x) u =|u|^{p-1}u $$ - Δ u + a ( x ) u
Molle R., Passaseo D.
openaire   +6 more sources

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Infinitely many solutions for Schrödinger–Newton equations

open access: yesCommunications in Contemporary Mathematics, 2023
We prove the existence of infinitely many non-radial positive solutions for the Schrödinger–Newton system [Formula: see text] provided that [Formula: see text] has the following behavior at infinity: [Formula: see text] where [Formula: see text] and [Formula: see text] are some positive constants.
Hu Y., Jevnikar A., Xie W.
openaire   +2 more sources

INFINITELY MANY SOLUTIONS FOR A NONLOCAL PROBLEM

open access: yesJournal of Applied Analysis & Computation, 2020
Consider a class of nonlocal problems $ \left\{\begin{array}{lr} -\left(a-b \int_{\Omega}|\nabla u|^{2} d x\right) \Delta u=f(x, u), & x \in \Omega, \\ u=0, & x \in \partial \Omega, \end{array}\right.$ 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 ...
Zhi-Yun Tang, Zeng-Qi Ou
openaire   +2 more sources

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

Infinitely many solutions for Hamiltonian systems

open access: yesJournal of Differential Equations, 2002
AbstractWe consider two classes of the second-order Hamiltonian systems with symmetry. If the systems are asymptotically linear with resonance, we obtain infinitely many small-energy solutions by minimax technique. If the systems possess sign-changing potential, we also establish an existence theorem of infinitely many solutions by Morse theory.
Wenming Zou, Shujie Li
openaire   +2 more sources

Doubly-Periodic Solutions of the Class I Infinitely Extended Nonlinear Schrodinger Equation [PDF]

open access: yesDoubly periodic solutions of the class-I infinitely extended nonlinear Schrodinger equation Physical Review E 99, 5(2019) 1-7, 2020
We present doubly-periodic solutions of the infinitely extended nonlinear Schrodinger equation with an arbitrary number of higher-order terms and corresponding free real parameters. Solutions have one additional free variable parameter that allows to vary periods along the two axes.
arxiv   +1 more source

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