Results 21 to 30 of about 19,753 (190)

Existence and Multiplicity Results for Degenerate Elliptic Equations with Dependence on the Gradient

open access: yesBoundary Value Problems, 2007
We study the existence of positive solutions for a class of degenerate nonlinear elliptic equations with gradient dependence. For this purpose, we combine a blowup argument, the strong maximum principle, and Liouville-type theorems to obtain a ...
Sebastian Lorca, Leonelo Iturriaga
doaj   +2 more sources

Ambarzumyan Type Theorems for a Class of Sturm-Liouville Problem

open access: yesCumhuriyet Science Journal, 2017
In this paper, we prove Ambarzumyan type theorems foran impulsive Sturm–Liouville problem with eigenparameter in the boundaryconditions.
A. Sinan Özkan, Yaşar Çakmak
doaj   +1 more source

Liouville type theorems for p-harmonic maps

open access: yesJournal of Mathematical Analysis and Applications, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Moon, Dong Joo   +2 more
openaire   +2 more sources

A new kind of uniqueness theorems for inverse Sturm-Liouville problems

open access: yesBoundary Value Problems, 2017
We prove Marchenko-type uniqueness theorems for inverse Sturm-Liouville problems. Moreover, we prove a generalization of Ambarzumyan’s theorem.
Yuri Ashrafyan
doaj   +1 more source

Liouville-type theorems for fractional Hardy–Hénon systems

open access: yesNonlinear Differential Equations and Applications NoDEA, 2023
AbstractIn this paper, we study Liouville-type theorems for fractional Hardy–Hénon elliptic systems with weights. Because the weights are singular at zero, we firstly prove that classical solutions for systems in $${\mathbb {R}}^N \backslash \{0\}$$ R
Kui Li, Yisen Meng, Zhitao Zhang
openaire   +1 more source

On Hybrid Type Nonlinear Fractional Integrodifferential Equations

open access: yesMathematics, 2020
In this paper, we introduce and investigate a hybrid type of nonlinear Riemann Liouville fractional integro-differential equations. We develop and extend previous work on such non-fractional equations, using operator theoretical techniques, and find the ...
Faten H. Damag   +2 more
doaj   +1 more source

Existence of positive solutions for p-Laplacian systems involving left and right fractional derivatives [PDF]

open access: yesArab Journal of Mathematical Sciences, 2021
Purpose – The paper deals with the existence of positive solutions for a coupled system of nonlinear fractional differential equations with p-Laplacian operator and involving both right Riemann–Liouville and left Caputo-type fractional derivatives.
Samira Ramdane, Assia Guezane-Lakoud
doaj   +1 more source

High-order Bahri–Lions Liouville-type theorems [PDF]

open access: yesAnnali di Matematica Pura ed Applicata (1923 -), 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +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

Pointwise orthogonal splitting of the space of TT-tensors

open access: yesДифференциальная геометрия многообразий фигур, 2023
In the present paper we consider pointwise orthogonal split­ting of the space of well-known TT-tensors on Rieman­nian manifolds. Tensors of the first subspace belong to the ker­nel of the Bourguignon Laplacian, and the tensors of the se­cond subspace ...
S. E. Stepanov, I. I. Tsyganok
doaj   +1 more source

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