Results 11 to 20 of about 814,404 (292)

A mountain pass theorem [PDF]

open access: yesJournal of Differential Equations, 1985
In this paper we establish a new version of the well-known theorem of Ambrosetti and Rabinowitz on the existence of critical points for functionals \(I: X\to {\mathbb{R}}\) of class \(C^ 1\) on a real Banach space X. As usual, a compactness condition of Palais-Smale type is assumed throughout, including a version particularly suited to the periodic ...
PUCCI, Patrizia, J. SERRIN
openaire   +4 more sources

A Mountain Pass for Reacting Molecules [PDF]

open access: yesAnnales Henri Poincaré, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Lewin, Mathieu
core   +6 more sources

The mountain pass alternative [PDF]

open access: yesAdvances in Applied Mathematics, 1991
The paper develops variational methods allowing to find the critical points of a continuously differentiable functional on a real Banach space. A modification of the mountain pass lemma concerning sequences that tend to the studied critical points is given.
Schechter, Martin
openaire   +3 more sources

A Thickness-Invariant Origami Robot With Integrated Actuation and Multimodal Locomotion. [PDF]

open access: yesAdv Sci (Weinh)
A thickness‐invariant variation on the Yoshimura origami pattern is used as the basis of a robot, allowing power, actuation, and control systems to be embedded within the thickened panels of the pattern. The robot uses multiple kinematic branches to achieve distinct modes of locomotion, such as walking, running, galloping, and turning. ABSTRACT Origami
Wing D   +4 more
europepmc   +2 more sources

Nonlinear Scalar Field Equations with L2 Constraint: Mountain Pass and Symmetric Mountain Pass Approaches

open access: yesAdvanced Nonlinear Studies, 2019
We study the existence of radially symmetric solutions of the following nonlinear scalar field equations in ℝN{\mathbb{R}^{N}} (N≥2{N\geq 2}):
Hirata Jun, Tanaka Kazunaga
doaj   +1 more source

An extension of the mountain pass lemma

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

A mountain pass algorithm with projector

open access: yesJournal of Computational and Applied Mathematics, 2012
Minimax methods are essential tools in the analysis of semilinear PDE by using the famous mountain pass theorem. In this paper, a modification of Chen, Ni, and Zhou's algorithm is presented. This modification guarantees that the critical points found are fixed-points of a metric projector on a closed cone.
Nicolas Tacheny, Christophe Troestler
openaire   +4 more sources

Framing the Human Dimensions of Mountain Systems: Integrating Social Science Paradigms for a Global Network of Mountain Observatories [PDF]

open access: yes, 2016
The Global Network of Mountain Observatories (GNOMO) is an international initiative seeking to increase communication and collaboration and align methodologies to assess commonalities and differences across the world's mountain landscapes.
Flint, Courtney G., Courtney G. Flint
core   +1 more source

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright   +8 more
wiley   +1 more source

Extensions of the mountain pass theorem

open access: yesJournal of Functional Analysis, 1984
The paper contains a number of extensions of the mountain pass lemma of \textit{A. Ambrosetti} and \textit{P. H. Rabinowitz} [(*) ibid. 14, 349-381 (1973; Zbl 0273.49063)]. The lemma gives sufficient conditions for the existence of critical points of continuously Fréchet differentiable functionals \(I: X\to {\mathbb{R}}\) on a real Banach space X.
PUCCI, Patrizia, J. SERRIN
openaire   +3 more sources

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