Results 1 to 10 of about 136,963 (272)

The Dirichlet problem for discontinuous perturbations of the mean curvature operator in Minkowski space [PDF]

open access: diamondElectronic Journal of Qualitative Theory of Differential Equations, 2015
Using the critical point theory for convex, lower semicontinuous perturbations of locally Lipschitz functionals, we prove the solvability of the discontinuous Dirichlet problem involving the operator $u\mapsto\mbox{div} \Big(\frac{\nabla u}{\sqrt{1 ...
C. Bereanu   +2 more
doaj   +4 more sources

Positive solutions of the discrete Dirichlet problem involving the mean curvature operator [PDF]

open access: goldOpen Mathematics, 2019
In this paper, by using critical point theory, we obtain some sufficient conditions on the existence of infinitely many positive solutions of the discrete Dirichlet problem involving the mean curvature operator.
Ling Jiaoxiu, Zhou Zhan
doaj   +2 more sources

Multiple periodic solutions for discrete boundary value problem involving the mean curvature operator [PDF]

open access: goldOpen Mathematics, 2022
In this article, by using critical point theory, we prove the existence of multiple TT-periodic solutions for difference equations with the mean curvature operator: −Δ(ϕc(Δu(t−1)))+q(t)u(t)=λf(t,u(t)),t∈Z,-\Delta ({\phi }_{c}\left(\Delta u\left(t-1)))+q ...
Wang Zhenguo, Li Qiuying
doaj   +2 more sources

Three Solutions for a Partial Discrete Dirichlet Problem Involving the Mean Curvature Operator [PDF]

open access: goldMathematics, 2021
Partial difference equations have received more and more attention in recent years due to their extensive applications in diverse areas. In this paper, we consider a Dirichlet boundary value problem of the partial difference equation involving the mean ...
Shaohong Wang, Zhan Zhou
doaj   +2 more sources

Decaying positive global solutions of second order difference equations with mean curvature operator

open access: greenElectronic Journal of Qualitative Theory of Differential Equations, 2020
A boundary value problem on an unbounded domain, associated to difference equations with the Euclidean mean curvature operator is considered. The existence of solutions which are positive on the whole domain and decaying at infinity is examined by ...
Zuzana Dosla   +2 more
doaj   +3 more sources

Evolution of the first eigenvalue of the Laplace operator and the p-Laplace operator under a forced mean curvature flow [PDF]

open access: goldOpen Mathematics, 2020
In this paper, we discuss the monotonicity of the first nonzero eigenvalue of the Laplace operator and the p-Laplace operator under a forced mean curvature flow (MCF).
Qi Xuesen, Liu Ximin
doaj   +2 more sources

On a power-type coupled system with mean curvature operator in Minkowski space [PDF]

open access: goldBoundary Value Problems, 2021
We study the Dirichlet problem for the prescribed mean curvature equation in Minkowski space { M ( u ) + v α = 0 in  B , M ( v ) + u β = 0 in  B , u | ∂ B = v | ∂ B = 0 , $$ \textstyle\begin{cases} \mathcal{M}(u)+ v^{\alpha }=0\quad \text{in } B ...
Zhiqian He   +2 more
doaj   +2 more sources

Weakly Increasing Solutions of Equations with p-Mean Curvature Operator

open access: goldMathematics
Globally positive unbounded solutions, with zero derivative at infinity, are here considered for ordinary differential equations involving the generalized Euclidean mean curvature operator.
Zuzana Došlá   +2 more
doaj   +2 more sources

Multiplicity of positive radial solutions for systems with mean curvature operator in Minkowski space

open access: goldAIMS Mathematics, 2021
In this paper, we are considered with the Dirichlet problem of quasilinear differential system with mean curvature operator in Minkowski space $ \mathcal{M}(w): = \text{div}\Big(\frac{\nabla w}{\sqrt{1-|\nabla w|^2}}\Big), $ in a ball in $ \mathbb{
Zhiqian He, Liangying Miao
doaj   +2 more sources

Additive operator splitting scheme for a general mean curvature flow and application in edges enhancement

open access: diamondJournal of Numerical Analysis and Approximation Theory
Many models that use non-linear partial differential equations (PDEs) have been extensively applied for different tasks in image processing. Among these PDE-based approaches, the mean curvature flow filtering has impressive results, for which feature ...
Rafaa Chouder, Noureddine Benhamidouche
doaj   +3 more sources

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