Results 41 to 50 of about 5,326,818 (348)

Local entropy and generic multiplicity one singularities of mean curvature flow of surfaces [PDF]

open access: yesJournal of differential geometry, 2018
In this paper we prove that the generic singularity of mean curvature flow of closed embedded surfaces in $\mathbb R^3$ modelled by closed self-shrinkers with multiplicity has multiplicity one.
Ao Sun
semanticscholar   +1 more source

On Total Shear Curvature of Surfaces in E^{n+2}

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
In the present study we consider surfaces in Euclidean (n+2)-space Eⁿ⁺². Firstly, we introduce some basic concepts of second fundamental form and curvatures of the surfaces in Eⁿ⁺².
Kadri Arslan, Betül Bulca
doaj   +1 more source

Circulant preconditioners for mean curvature-based image deblurring problem

open access: yesJournal of Algorithms & Computational Technology, 2021
The mean curvature-based image deblurring model is widely used to enhance the quality of the deblurred images. However, the discretization of the associated Euler–Lagrange equations produces a nonlinear ill-conditioned system which affects the ...
Shahbaz Ahmad, Faisal Fairag
doaj   +1 more source

The global geometry of surfaces with prescribed mean curvature in ℝ³ [PDF]

open access: yesTransactions of the American Mathematical Society, 2018
We develop a global theory for complete hypersurfaces in R n + 1 \mathbb {R}^{n+1} whose mean curvature is given as a prescribed function of its Gauss map.
Antonio Bueno, J. A. Gálvez, Pablo Mira
semanticscholar   +1 more source

Width and mean curvature flow [PDF]

open access: yesGeometry & Topology, 2008
Given a Riemannian metric on a homotopy $n$-sphere, sweep it out by a continuous one-parameter family of closed curves starting and ending at point curves. Pull the sweepout tight by, in a continuous way, pulling each curve as tight as possible yet preserving the sweepout.
Colding, Tobias H   +1 more
openaire   +4 more sources

Examples of surfaces of constant mean curvature

open access: yesДифференциальная геометрия многообразий фигур, 2019
A surface in E3 is called parallel to the surface M if it consists of the ends of constant length segments, laid on the normals to the surfaces at points of this surface. The tangent planes at the corresponding points will be parallel.
M. A. Cheshkova
doaj   +1 more source

Recent rigidity results for graphs with prescribed mean curvature

open access: yesMathematics in Engineering, 2021
This survey describes some recent rigidity results obtained by the authors for the prescribed mean curvature problem on graphs u : M → R. Emphasis is put on minimal, CMC and capillary graphs, as well as on graphical solitons for the mean curvature flow ...
Bruno Bianchini   +5 more
doaj   +1 more source

Remarks on mean curvature flow solitons in warped products [PDF]

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2018
We study some properties of mean curvature flow solitons in general Riemannian manifolds and in warped products, with emphasis on constant curvature and Schwarzschild type spaces.
G. Colombo, L. Mari, M. Rigoli
semanticscholar   +1 more source

Mean curvature flow with surgery [PDF]

open access: yesDuke Mathematical Journal, 2017
We give a new proof for the existence of mean curvature flow with surgery of 2-convex hypersurfaces in $R^N$, as announced in arXiv:1304.0926. Our proof works for all $N \geq 3$, including mean convex surfaces in $R^3$. We also derive a priori estimates for a more general class of flows in a local and flexible setting.
Haslhofer, Robert, Kleiner, Bruce
openaire   +5 more sources

Symmetry of hypersurfaces and the Hopf Lemma

open access: yesMathematics in Engineering, 2023
A classical theorem of A. D. Alexandrov says that a connected compact smooth hypersurface in Euclidean space with constant mean curvature must be a sphere.
YanYan Li
doaj   +1 more source

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