Results 41 to 50 of about 641,065 (281)

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

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

open access: yesArchive for Rational Mechanics and Analysis, 2019
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 R^2. We show that any such flow is a shear flow, that is, it is parallel to some constant vector.
François Hamel, Nikolai Nadirashvili
openaire   +5 more sources

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

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

Liouville theorems for elliptic systems and applications

open access: yesJournal of Mathematical Analysis and Applications, 2014
We prove different Liouville theorems for several classes of quasilinear elliptic systems and ...
Lorenzo DʼAmbrosio, E. Mitidieri
semanticscholar   +6 more sources

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, Weihua Wang, Qihua Ruan
openaire   +3 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

Liouville theorems and classification results for a nonlocal Schrödinger equation

open access: yes, 2018
In this paper, we study the existence and the nonexistence of positive classical solutions of the static Hartree-Poisson equation \begin{document}$-Δ u = pu^{p-1}(|x|^{2-n}*u^p),\;\; u>0 \;\;in\;\; R^n, $ \end{document} where \begin{document}$n ≥ 3$\end ...
Y. Lei
semanticscholar   +1 more source

Nabla Fractional Derivative and Fractional Integral on Time Scales

open access: yesAxioms, 2021
In this paper, we introduce the nabla fractional derivative and fractional integral on time scales in the Riemann–Liouville sense. We also introduce the nabla fractional derivative in Grünwald–Letnikov sense.
Bikash Gogoi   +4 more
doaj   +1 more source

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