Results 1 to 10 of about 336 (90)

A Picone identity for variable exponent operators and applications

open access: yesAdvances in Nonlinear Analysis, 2019
In this work, we establish a new Picone identity for anisotropic quasilinear operators, such as the p(x)-Laplacian defined as div(|∇ u|p(x)−2 ∇ u).
Arora Rakesh   +2 more
doaj   +2 more sources

Generalized Picone inequalities and their applications to (p,q)-Laplace equations

open access: yesOpen Mathematics, 2020
We obtain a generalization of the Picone inequality which, in combination with the classical Picone inequality, appears to be useful for problems with the (p,q)(p,q)-Laplace-type operators.
Bobkov Vladimir, Tanaka Mieko
doaj   +2 more sources

Sturm-Picone Comparison Theorem of Second-Order Linear Equations on Time Scales

open access: yesAdvances in Difference Equations, 2009
This paper studies Sturm-Picone comparison theorem of second-order linear equations on time scales. We first establish Picone identity on time scales and obtain our main result by using it.
Zhang Chao, Sun Shurong
doaj   +2 more sources

Picone-type identity and comparison results for a class of partial differential equations of order 4m [PDF]

open access: yesOpuscula Mathematica, 2013
In the paper, a Picone-type identity for the weighted \(p\)-polyharmonic operator is established and comparison theorems and other qualitative results for a class of half-linear partial differential equations of the \(4m\)th order based on this identity ...
Jaroslav Jaroš
doaj   +1 more source

Anisotropic Picone identities and anisotropic Hardy inequalities

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we derive an anisotropic Picone identity for the anisotropic Laplacian, which contains some known Picone identities. As applications, a Sturmian comparison principle to the anisotropic elliptic equation and an anisotropic Hardy type ...
Tingfu Feng, Xuewei Cui
doaj   +1 more source

Global continuum and multiple positive solutions to one-dimensional p-Laplacian boundary value problem

open access: yesAdvances in Difference Equations, 2020
We show the global structure of the set of positive solutions of a discrete Dirichlet problem involving the p-Laplacian difference operator suggesting suitable conditions on the weight function and nonlinearity.
Liping Wei, Ruyun Ma
doaj   +1 more source

Caccioppoli-type inequalities for Dirac operators

open access: yesJournal of Inequalities and Applications, 2022
In this paper, we establish the Caccioppoli estimates for the nonlinear differential equation − D ‾ ( | D v | p − 2 D v ) = λ | v | p − 2 v , 1 < p < ∞ , $$ - \overline{D}\bigl( \vert Dv \vert ^{p-2}Dv\bigr) = \lambda \vert v \vert ^{p-2}v, \quad 1< p ...
Ardak Kashkynbayev, Gulaiym Oralsyn
doaj   +1 more source

A modified Picone-type identity and the uniqueness of positive symmetric solutions for a prescribed mean curvature problem

open access: yesAdvanced Nonlinear Studies, 2023
In this article, we study the uniqueness of positive symmetric solutions of the following mean curvature problem in Euclidean space: (P)u′1+∣u′∣2′+h(x)f(u)=0 ...
Lee Yong-Hoon, Yang Rui
doaj   +1 more source

A generalized nonlinear Picone identity for the p-biharmonic operator and its applications

open access: yesJournal of Inequalities and Applications, 2019
A generalized nonlinear Picone identity for the p-biharmonic operator is established in this paper. As applications, a Sturmian comparison principle to the p-biharmonic equation with singular term, a Liouville’s theorem to the p-biharmonic system, and a ...
Tingfu Feng
doaj   +1 more source

Existence of positive solutions for nonlinear Dirichlet problems with gradient dependence and arbitrary growth

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
We consider a nonlinear elliptic problem driven by the Dirichlet $p$-Laplacian and a reaction term which depends also on the gradient (convection). No growth condition is imposed on the reaction term $f(z, \cdot,y)$.
Nikolaos Papageorgiou   +2 more
doaj   +1 more source

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