Results 21 to 30 of about 781 (177)

Image restoration via Picard's and Mountain-pass Theorems

open access: yesElectronic Research Archive, 2022
<abstract><p>In this work, we present existence results for some problems which arise in image processing namely image restoration. Our essential tools are Picard's fixed point theorem for a strict contraction and Mountain-pass Theorem for critical point.</p></abstract>
Souad Ayadi, Özgür Ege
openaire   +2 more sources

Existence of at least one nontrivial solution for a class of problems involving both p(x)-Laplacian and p(x)-Biharmonic

open access: yesپژوهش‌های ریاضی, 2022
We investigate the existence of a weak nontrivial solution for the following problem. Our analysis is generally bathed on discussions of variational based on the Mountain Pass theorem and some recent theories one the generalized Lebesgue-Sobolev space ...
Atieh Ramzannia Jalali   +1 more
doaj  

Systems of Kirchhoff quasilinear Schrodinger equations with Hardy potential and critical Choquard-type nonlinearity

open access: yesElectronic Journal of Differential Equations
In this article, we study the existence of solutions for a system of Kirchhoff quasilinear Schrodinger equations involving Hardy potential and critical Choquard-type nonlinearity with parameters.
Vishal Kumar, Sarika Goyal
doaj   +3 more sources

Mountain pass theorems and global homeomorphism theorems [PDF]

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 1994
We show that mountain-pass theorems can be used to derive global homeomorphism theorems. Two new mountain-pass theorems are proved, generalizing the “smooth” mountain-pass theorem, one applying in locally compact topological spaces, using Hofer’s concept of mountain-pass point, and another applying in complete metric spaces, using a generalized notion ...
openaire   +2 more sources

Existence and Multiplicity of Homoclinic Orbits for Second-Order Hamiltonian Systems with Superquadratic Potential

open access: yesAbstract and Applied Analysis, 2013
We investigate the existence and multiplicity of homoclinic orbits for second-order Hamiltonian systems with local superquadratic potential by using the Mountain Pass Theorem and the Fountain Theorem, respectively.
Ying Lv, Chun-Lei Tang
doaj   +1 more source

A Mountain Pass-type Theorem for Vector-valued Functions [PDF]

open access: yesSet-Valued and Variational Analysis, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bednarczuk, E   +2 more
openaire   +3 more sources

Existence and Multiplicity of Solutions for a Class of Anisotropic Double Phase Problems

open access: yesAdvances in Mathematical Physics, 2020
We consider the following double phase problem with variable exponents: −div∇upx−2∇u+ax∇uqx−2∇u=λfx,u in Ω,u=0, on ∂Ω. By using the mountain pass theorem, we get the existence results of weak solutions for the aforementioned problem under some ...
Jie Yang, Haibo Chen, Senli Liu
doaj   +1 more source

Multiplicity of positive solutions for second order quasilinear equations [PDF]

open access: yesMathematica Bohemica, 2020
We discuss the existence and multiplicity of positive solutions for a class of second order quasilinear equations. To obtain our results we will use the Ekeland variational principle and the Mountain Pass Theorem.
Dahmane Bouafia   +2 more
doaj   +1 more source

The Existence Result for a p-Kirchhoff-Type Problem Involving Critical Sobolev Exponent

open access: yesJournal of Function Spaces, 2023
In this paper, by using the mountain pass theorem and the concentration compactness principle, we prove the existence of a positive solution for a p-Kirchhoff-type problem with critical Sobolev exponent.
Hayat Benchira   +3 more
doaj   +1 more source

Scaling turbulence drives the general circulation

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
The NOAA Gulfstream SP4, which deployed the GPS dropsondes over the NE Pacific Ocean as part of the Winter Storms Project during the January–March periods of 2004, 2005 and 2006. Abstract Statistical multifractal analysis of airborne and dropsonde observations is used to show that persistence of velocity after molecular collisions breaks the continuous
Adrian F. Tuck
wiley   +1 more source

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