Results 1 to 10 of about 3,762 (154)

A Generalized Palais-Smale Condition in the Fr\'{e}chet space setting [PDF]

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2018
The Palais-Smale condition was introduced by Palais and Smale in the mid-sixties and applied to an extension of Morse theory to infinite dimensional Hilbert spaces.
Kaveh Eftekharinasab
doaj   +6 more sources

Bifurcation of Gradient Mappings Possessing the Palais-Smale Condition [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
This paper considers bifurcation at the principal eigenvalue of a class of gradient operators which possess the Palais-Smale condition. The existence of the bifurcation branch and the asymptotic nature of the bifurcation is verified by using the ...
Elliot Tonkes
doaj   +2 more sources

On a functional satisfying a weak Palais-Smale condition

open access: yesDiscrete & Continuous Dynamical Systems - A, 2013
In this paper we study a quasilinear elliptic problem whose functional satisfies a weak version of the well known Palais-Smale condition.
A. Azzollini   +13 more
core   +4 more sources

The Solvability of Concave-Convex Quasilinear Elliptic Systems Involving $p$-Laplacian and Critical Sobolev Exponent [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
In this work, we study the existence of non-trivial multiple solutions for a class of quasilinear elliptic systems equipped with concave-convex nonlinearities and critical growth terms in bounded domains.
Somayeh Khademloo, Saeed Khanjany Ghazi
doaj   +1 more source

On variational nonlinear equations with monotone operators

open access: yesAdvances in Nonlinear Analysis, 2020
Using monotonicity methods and some variational argument we consider nonlinear problems which involve monotone potential mappings satisfying condition (S) and their strongly continuous perturbations.
Galewski Marek
doaj   +1 more source

Periodic traveling waves in Fermi–Pasta–Ulam type systems with nonlocal interaction on 2d-lattice

open access: yesМатематичні Студії, 2023
The paper deals with the Fermi--Pasta--Ulam type systems that describe an infinite systems of nonlinearly  coupled particles with nonlocal interaction on a two dimensional lattice.
S. M. Bak, G. M. Kovtonyuk
doaj   +1 more source

Ground states for scalar field equations with anisotropic nonlocal nonlinearities [PDF]

open access: yes, 2014
We consider a class of scalar field equations with anisotropic nonlocal nonlinearities. We obtain a suitable extension of the well-known compactness lemma of Benci and Cerami to this variable exponent setting, and use it to prove that the Palais-Smale ...
Iannizzotto, Antonio   +2 more
core   +1 more source

On geodesic flows with symmetries and closed magnetic geodesics on orbifolds [PDF]

open access: yes, 2017
Let $Q$ be a closed manifold admitting a locally-free action of a compact Lie group $G$. In this paper we study the properties of geodesic flows on $Q$ given by Riemannian metrics which are invariant by such an action.
Asselle, Luca, Schmäschke, Felix
core   +2 more sources

Vitali convergence theorem and Palais-Smale condition

open access: yesDifferential and Integral Equations, 2002
Let \(N\geq 2\) and ...
Chen, Min-Chun   +2 more
openaire   +3 more sources

Existence of solutions for a double-phase variable exponent equation without the Ambrosetti-Rabinowitz condition

open access: yesAdvances in Nonlinear Analysis, 2023
The article deals with the existence of a pair of nontrivial nonnegative and nonpositive solutions for a nonlinear weighted quasilinear equation in RN{{\mathbb{R}}}^{N}, which involves a double-phase general variable exponent elliptic operator A{\bf{A}}.
Liu Jingjing, Pucci Patrizia
doaj   +1 more source

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