Results 41 to 50 of about 651,324 (288)

Liouville Theorems for a General Class of Nonlocal Operators [PDF]

open access: yes, 2015
In this paper, we study the equation ℒu=0$\mathcal {L} u=0$ in ℝN$\mathbb {R}^{N}$, where ℒ$\mathcal {L}$ belongs to a general class of nonlocal linear operators which may be anisotropic and nonsymmetric.
M. Fall, T. Weth
semanticscholar   +1 more source

A Two Well Liouville Theorem [PDF]

open access: yesESAIM: Control, Optimisation and Calculus of Variations, 2005
Summary: We analyse the structure of approximate solutions to the compatible two-well problem with the constraint that the surface energy of the solution is less than some fixed constant. We prove a quantitative estimate that can be seen as a two-well analogue of the Liouville theorem of \textit{G. Friesecke}, \textit{R. D. James} and \textit{S. Müller}
openaire   +1 more source

Existence of Three Solutions for Nonlinear Operator Equations and Applications to Second-Order Differential Equations

open access: yesJournal of Function Spaces, 2021
The existence of three solutions for nonlinear operator equations is established via index theory for linear self-adjoint operator equations, critical point reduction method, and three critical points theorems obtained by Brezis-Nirenberg, Ricceri, and ...
Mingliang Song, Shuyuan Mei
doaj   +1 more source

The Partial Inverse Spectral and Nodal Problems for Sturm–Liouville Operators on a Star-Shaped Graph

open access: yesMathematics, 2022
We firstly prove the Horváth-type theorem for Sturm–Liouville operators on a star-shaped graph and then solve a new partial inverse nodal problem for this operator.
Xian-Biao Wei   +2 more
doaj   +1 more source

Weighted ${L^p}$-Liouville Theorems for Hypoelliptic Partial Differential Operators on Lie Groups

open access: yes, 2015
We prove weighted $L^p$-Liouville theorems for a class of second order hypoelliptic partial differential operators $\mathcal{L}$ on Lie groups $\mathbb{G}$ whose underlying manifold is $n$-dimensional space.
Bonfiglioli, Andrea, Kogoj, Alessia E.
core   +1 more source

Liouville’s theorem for generalized harmonic function [PDF]

open access: yesAnalysis and Mathematical Physics, 2020
In this paper, we give a more physical proof of Liouville's theorem for a class generalized harmonic functions by the method of parabolic equation.
Weihua Wang, Qihua Ruan
openaire   +2 more sources

Some Liouville Theorems on Finsler Manifolds

open access: yesMathematics, 2019
We give some Liouville type theorems of L p harmonic (resp. subharmonic, superharmonic) functions on a complete noncompact Finsler manifold.
Minqiu Wang, Songting Yin
doaj   +1 more source

Higher-dimensional solutions for a nonuniformly elliptic equation

open access: yes, 2013
We prove $m$-dimensional symmetry results, that we call $m$-Liouville theorems, for stable and monotone solutions of the following nonuniformly elliptic equation \begin{eqnarray*}\label{mainequ} - div(\gamma(\mathbf x') \nabla u(\mathbf x)) =\lambda ...
Fazly, Mostafa
core   +1 more source

On a mixed nonlinear boundary value problem with the right Caputo fractional derivative and multipoint closed boundary conditions

open access: yesAIMS Mathematics, 2023
This paper is concerned with the study of a new class of boundary value problems involving a right Caputo fractional derivative and mixed Riemann-Liouville fractional integral operators, and a nonlocal multipoint version of the closed boundary conditions.
Bashir Ahmad   +3 more
doaj   +1 more source

Fractional isoperimetric Noether's theorem in the Riemann-Liouville sense

open access: yes, 2013
We prove Noether-type theorems for fractional isoperimetric variational problems with Riemann-Liouville derivatives. Both Lagrangian and Hamiltonian formulations are obtained. Illustrative examples, in the fractional context of the calculus of variations,
Almeida   +39 more
core   +1 more source

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