Results 1 to 10 of about 23,705 (149)

Existence, Uniqueness, and Input-to-State Stability of Ground State Stationary Strong Solution of a Single-Species Model via Mountain Pass Lemma [PDF]

open access: yesComplexity, 2021
In this study, the authors utilize mountain pass lemma, variational methods, regularization technique, and the Lyapunov function method to derive the unique existence of the positive classical stationary solution of a single-species ecosystem ...
Ruofeng Rao, Quanxin Zhu, Jialin Huang
doaj   +3 more sources

On mountain pass theorem and its application to periodic solutions of some nonlinear discrete systems [PDF]

open access: yesAdvances in Difference Equations, 2019
In this paper, we prove a new quantitative deformation lemma, and then gain a new mountain pass theorem in Hilbert spaces. By using the new mountain pass theorem, we obtain the new existence of two nontrivial periodic solutions for a class of nonlinear ...
Liang Ding, Jinlong Wei, Shiqing Zhang
doaj   +5 more sources

A generalized mountain pass lemma with a closed subset for locally Lipschitz functionals [PDF]

open access: yesApplicable Analysis, 2021
arXiv admin note: text overlap with arXiv:1405 ...
Li, Fengying   +2 more
openaire   +4 more sources

Mountain pass lemma and new periodic solutions of the singular second order Hamiltonian system [PDF]

open access: yesBoundary Value Problems, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Li, Bingyu, Li, Fengying
semanticscholar   +3 more sources

A bounded mountain pass lemma without the (PS) condition and applications [PDF]

open access: yesTransactions of the American Mathematical Society, 1992
The author's generalization of the fundamental mountain pass lemma is the following: Theorem. Let \(G(u)\in C^ 1(H,R^ 1)\), \(u_ k\) converging weakly to \(u\), \(| G(u_ k)|\leq c\), \(G'(u_ k)\to 0\), imply that \(G'(u)=0\). Assume that \(H=N\oplus M\), \(\dim N0\), such that \[ c_ 0\equiv\max_{bdy\{v\in N\mid\| v\|\leq R_ 0\}}G0 ...
M. Schechter
openaire   +3 more sources

Symmetric mountain pass lemma and sublinear elliptic equations

open access: yesJournal of Differential Equations, 2016
This paper deals with the qualitative analysis of solutions of a class of quasilinear elliptic equations with Dirichlet zero boundary condition. The main result of this paper establishes a necessary and sufficient condition such that the zero solution is an accumulation point of the set of all solutions.
R. Kajikiya
openaire   +3 more sources

ON A NEW FIXED POINT THEOREM ON HILBERT SPACES VIA THE MOUNTAIN PASS LEMMA AND APPLICATIONS TO ELLIPTIC BOUNDARY VALUE PROBLEMS [PDF]

open access: yesInternational Journal of Pure and Apllied Mathematics, 2016
In this paper we present a new fixed point theorem in Hilbert spaces. Using a suitable critical point theorem we provide conditions under which potential operators have a fixed point. An application is given to illustrate the theory.
A. Souad, T. Moussaoui, D. O'Regan
openaire   +2 more sources

Some extensions of the mountain pass lemma

open access: yesDifferential and Integral Equations, 1988
This article deals with some variants of the classical mountain pass lemma. In the first part the following result is obtained: if \(f: \mathbb{E}\to\mathbb{R}\) is a \(C^ 1\) smooth functional with \(PS\)-condition on a real Banach space \(\mathbb{E}\), \(x_ 0,x_ 1\in\mathbb{E}\), \({\mathcal D}\) is an open neighborhood, \(x_ 0,x_ 1\not\in{\mathcal D}
Guo, Da Jun, Sun, Jing Xian, Qi, Gui Jie
openaire   +4 more sources

An extension of the mountain pass lemma

open access: yesApplied Mathematics Letters, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Lizhou, Li, Dongsheng
openaire   +3 more sources

A critical point theorem related to the symmetric mountain pass lemma and its applications to elliptic equations

open access: yesJournal of Functional Analysis, 2005
In this paper it is proved a critical point theorem of mountain-pass type which yields a sequence of critical points converging to zero. The proof combines a pseudo-gradient property with a deformation lemma. The abstract result is applied for proving a multiplicity result for the semilinear elliptic equation \(-\Delta u=f(x,u)\) in \(\Omega\) under ...
R. Kajikiya
openaire   +3 more sources

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