Results 21 to 30 of about 666,505 (227)

A Liouville Theorem for the Euler Equations in the Plane [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2017
This paper is concerned with qualitative properties of bounded steady flows of an ideal incompressible fluid with no stagnation point in the two-dimensional plane R2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage ...
F. Hamel, N. Nadirashvili
semanticscholar   +1 more source

A Sharp Liouville Theorem for Elliptic Operators [PDF]

open access: yes, 2010
We introduce a new condition on elliptic operators $L= {1/2}\triangle + b \cdot \nabla $ which ensures the validity of the Liouville property for bounded solutions to $Lu=0$ on $\R^d$. Such condition is sharp when $d=1$.
Priola, Enrico, Wang, Feng-Yu
core   +1 more source

A Liouville theorem for stationary and ergodic ensembles of parabolic systems [PDF]

open access: yesProbability theory and related fields, 2017
A first-order Liouville theorem is obtained for random ensembles of uniformly parabolic systems under the mere qualitative assumptions of stationarity and ergodicity.

semanticscholar   +1 more source

Revisiting Taibleson's theorem

open access: yesElectronic Research Archive, 2022
A new characterization of the weighted Taibleson's theorem for generalized Hölder spaces is given via a Hadamard-Liouville type operator (Djrbashian's generalized fractional operator).
Humberto Rafeiro, Joel E. Restrepo
doaj   +1 more source

Wintner-type nonoscillation theorems for conformable linear Sturm-Liouville differential equations [PDF]

open access: yesOpuscula Mathematica
In this study, we addressed the nonoscillation of th Sturm-Liouville differential equation with a differential operator, which corresponds to a proportional-derivative controller. The equation is a conformable linear differential equation. A Wintner-type
Kazuki Ishibashi
doaj   +1 more source

A C1 Arnol'd-Liouville theorem

open access: yes, 2020
In this paper, we prove a version of Arnol'd-Liouville theorem for C 1 commuting Hamiltonians. We show that the Lipschitz regularity of the foliation by invariant Lagrangian tori is crucial to determine the Dynamics on each Lagrangian torus and that the ...
M. Arnaud, Jinxin Xue
semanticscholar   +1 more source

A C^1 Arnol'd-Liouville theorem [PDF]

open access: yesAstérisque, 2016
In this paper, we prove a version of Arnol'd-Liouville theorem for C 1 commuting Hamiltonians. We show that the Lipschitz regularity of the foliation by invariant Lagrangian tori is crucial to determine the Dynamics on each Lagrangian torus and that the ...
M. Arnaud, Jinxin Xue
semanticscholar   +1 more source

New existence results for fractional differential equations in a weighted Sobolev space [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 2021
In this paper, we give some conditions to prove the existence of solutions for a nonlinear boundary value problem of fractional differential equations with higher order q, (n-1 ...
Ahmed Hallaci   +3 more
doaj  

Positive Solutions for a Higher-Order Semipositone Nonlocal Fractional Differential Equation with Singularities on Both Time and Space Variable

open access: yesJournal of Function Spaces, 2019
In this paper, we consider the following higher-order semipositone nonlocal Riemann-Liouville fractional differential equation D0+αx(t)+f(t,x(t),D0+βx(t))+e(t)=0 ...
Kemei Zhang
doaj   +1 more source

A Liouville theorem for the higher-order fractional Laplacian [PDF]

open access: yesCommunications in Contemporary Mathematics, 2016
We study Navier problems involving the higher-order fractional Laplacians. We first obtain nonexistence of positive solutions, known as the Liouville-type theorems, in the upper half-space [Formula: see text] by studying an equivalent integral form of ...
Ran Zhuo, Yan Li
semanticscholar   +1 more source

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