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A Strong Form of the Mountain Pass Theorem and Application

Mathematical Sciences Research Institute Publications, 1988
Variational methods are a strong tool in proving existence of solutions of differential equations. In this paper we prove a strong form of the mountain pass theorem which was prompted by the need of a theorem which, besides an existence statement for critical points, gives in addition information about the “fine structure” of the functional near to ...
Hofer H
exaly   +2 more sources

The Mountain-Pass Theorem [PDF]

open access: yes, 2007
Roughly speaking, the basic idea behind the so-called minimax method is the following: Find a critical value of a functional ϕ ∈ C1 (X, ℝ) as a minimax (or maximin) value c ∈ ℝ of ϕ over a suitable class A of subsets of X: $$ c = \mathop {\inf }\limits_{A \in \mathcal{A}} \mathop {\sup }\limits_{u \in A} \phi \left( u \right). $$
David G. Costa
openaire   +2 more sources

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

open access: yesJournal of Functional Analysis, 2005
For an even functional on a Banach space, the symmetric mountain pass lemma gives a sequence of critical values which converges to zero. Under the same assumptions on the functional, this paper establishes a new critical point theorem which provides a ...
Ryuji Kajikiya
exaly   +2 more sources

Mountain Pass solutions for non-local elliptic operators [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2012
The purpose of this paper is to study the existence of solutions for equations driven by a non-local integrodifferential operator with homogeneous Dirichlet boundary conditions.
Enrico Valdinoci, Raffaella Servadei
exaly   +2 more sources

Application of a Variant of Mountain Pass Theorem in Modeling Real Phenomena [PDF]

open access: yesMathematics, 2022
Mountain Pass Theorem (MPT) is an important result in variational methods with multiple applications in partial differential equations involved in mathematical physics. Starting from a variant of MPT, a new result concerning the existence of the solution
Irina Meghea
exaly   +2 more sources

Positive mountain pass solutions for a semilinear elliptic equation with a sign-changing weight function [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2006
We use the mountain pass theorem to study the existence and multiplicity of positive solutions of the generalisation of the well-known logistic equation -?u=?g(x)u(x)(1-u(x)) with Dirichlet boundary conditions to the case where g changes sign.
G A Afrouzi
exaly   +2 more sources

An Application of a Mountain Pass Theorem

Acta Mathematica Sinica, English Series, 2002
The present paper is devoted to study the following Dirichlet problem: \[ -\Delta u=f(x,u), \quad x\in\Omega,\;u\in H^1_0(\Omega),\tag{1} \] where \(\Omega\) is a bounded smooth domain in \(\mathbb{R}^N\), with \(f(x,t)\) asymptotically linear in \(t\) at infinity.
openaire   +2 more sources

Minimization and Mountain-Pass Theorems

2001
In this introductory chapter, we consider the concept on differentiability of mappings in Banach spaces, Frechet and Gâteaux derivatives, secondorder derivatives and general minimization theorems. Variational principles of Ekeland [Ek1] and Borwein & Preiss [BP] are proved and relations to the minimization problem are given. Deformation lemmata, Palais—
Maria do Rosário Grossinho   +1 more
openaire   +1 more source

The Mountain Pass Theorem

2003
This 2003 book presents min-max methods through a study of the different faces of the celebrated Mountain Pass Theorem (MPT) of Ambrosetti and Rabinowitz. The reader is led from the most accessible results to the forefront of the theory, and at each step in this walk between the hills, the author presents the extensions and variants of the MPT in a ...
openaire   +1 more source

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