Results 31 to 40 of about 211,213 (315)

Connected components of positive solutions for a Dirichlet problem involving the mean curvature operator in Minkowski space

open access: diamondDiscrete & Continuous Dynamical Systems - B, 2018
In this paper we study global bifurcation phenomena for the Dirichlet problem associated with the prescribed mean curvature equation in Minkowski space \begin{document}$\left\{ \begin{array}{l} -\text{div}\big(\frac{\nabla u}{\sqrt{1-|\nabla u|^2}}\big) =
Ruyun Ma, Man Xu
openalex   +2 more sources

Periodic solutions for nonlinear equations with mean curvature-like operators

open access: goldApplied Mathematics Letters, 2006
AbstractWe give an existence result for a periodic boundary value problem involving mean curvature-like operators in the scalar case. Following [R. Manásevich, J. Mawhin, Periodic solutions for nonlinear systems with p-Laplacian-like operators, J. Differential Equations 145 (1998), 367–393], we use an approach based on the Leray–Schauder degree.
Pierluigi Benevieri   +2 more
openalex   +3 more sources

Two positive solutions of a second order nonlinear difference equation involving the mean curvature operator

open access: goldElectronic Research Archive
In this paper, we establish the existence of two positive solutions for a discrete mean curvature problem with Dirichlet boundary value conditions. The approach is based on a two-critical-point theorem.
Liqun Jiang, Lin Zou, Xiaoyan Chen
doaj   +2 more sources

Positive decaying solutions to BVPs with mean curvature operator

open access: yes, 2017
A nonlocal boundary value problem on the half-closed interval, associated to differential equations with the Euclidean mean curvature operator or with the Minkowski mean curvature operator is here considered. By using a new approach, based on a linearization device and some properties of principal solutions of certain disconjugate second-order linear ...
Z. Došlá, M. Marini, S. Matucci
semanticscholar   +3 more sources

Commutators, eigenvalue gaps, and mean curvature in the theory of Schr\"odinger operators [PDF]

open access: greenCommunications in Partial Differential Equations, 2003
Commutator relations are used to investigate the spectra of Schr dinger Hamiltonians, $H = - + V({x}),$ acting on functions of a smooth, compact $d$-dimensional manifold $M$ immersed in $\bbr^ , \geq d+1$. Here $ $ denotes the Laplace-Beltrami operator, and the real-valued potential--energy function $V(x)$ acts by multiplication. The manifold $M$
Harrell, Mogoi Evans
openalex   +4 more sources

Mean curvature and shape operator of isometric immersions in real-space-forms [PDF]

open access: bronzeGlasgow Mathematical Journal, 1996
According to the well-known Nash's theorem, every Riemannian n-manifold admits an isometric immersion into the Euclidean space En(n+1)(3n+11)/2. In general, there exist enormously many isometric immersions from a Riemannian manifold into Euclidean spaces if no restriction on the codimension is made.
Bang‐Yen Chen
openalex   +2 more sources

Nodal solutions to problem with mean curvature operator in Minkowski space

open access: yesDifferential and Integral Equations, 2017
This paper is devoted to investigate the existence and multiplicity of radial nodal solutions for the following Dirichlet problem with mean curvature operator in Minkowski space \begin{eqnarray} \begin{cases} -\text{div} \Big (\frac{\nabla v}{\sqrt{1-\vert \nabla v\vert^2}} \Big ) = \lambda f(\vert x\vert,v)\,\, &\text{in}\,\, B_R(0),\\ v=0~~~~~~~~~~~~~
Guowei Dai, Jun Wang
semanticscholar   +3 more sources

AMBROSETTI-PRODI TYPE RESULTS FOR DISCRETE MINKOWSKI-MEAN CURVATURE OPERATORS WITH REPULSIVE SINGULARITIES

open access: diamondJournal of Applied Analysis & Computation
Summary: In this work, we study an Ambrosetti-Prodi type results for discrete Minkowski-mean curvature operators with repulsive singularities \[ \begin{aligned} &\Delta \left( \frac{\Delta u(t-1)}{\sqrt{1-(\Delta u(t-1))^2}} \right) + f(u) \Delta u(t) + g(t,u (t)) = s, \quad t \in [1,T]_{\mathbb{Z}},\\ &u(0) = u(T), \quad \Delta u(0) = \Delta u(T ...
Yaqin Li, Yanqiong Lu
openalex   +3 more sources

On timelike hypersurfaces of the Minkowski 4-space with 1-proper second mean curvature vector [PDF]

open access: yesJournal of Mahani Mathematical Research, 2023
The mean curvature vector field of a submanifold in the Euclidean $n$-space is said to be $proper$ if it is an eigenvector of the Laplace operator $\Delta$.
Firooz Pashaie   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy