Results 21 to 30 of about 43,149 (167)

Inverse Mean Curvature Flow With Singularities

open access: yesInternational Mathematics Research Notices, 2022
Abstract This paper concerns the inverse mean curvature flow (IMCF) running from the boundary of a convex body that has no regularity assumption. We study the evolution of singularities by looking at the blow-up tangent cone around each singular point.
Choi, Beomjun, Hung, Pei-Ken
openaire   +2 more sources

The volume preserving mean curvature flow. [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1987
Let \(F: M^ n\to {\mathbb{R}}^{n+1}\) be the immersion of a uniformly convex closed hypersurface in \({\mathbb{R}}^{n+1}\). \(M^ n\) is deformed by the evolution equation \(\partial F/\partial t=(h-H)\cdot \nu\) where \(\nu\) is the outer unit normal to M, H is the mean curvature and h is the average of H.
openaire   +2 more sources

Complete Self-Shrinking Solutions for Lagrangian Mean Curvature Flow in Pseudo-Euclidean Space

open access: yesAbstract and Applied Analysis, 2014
Let f(x) be a smooth strictly convex solution of det(∂2f/∂xi∂xj)=exp(1/2)∑i=1nxi(∂f/∂xi)-f defined on a domain Ω⊂Rn; then the graph M∇f of ∇f is a space-like self-shrinker of mean curvature flow in Pseudo-Euclidean space Rn2n with the indefinite metric ...
Ruiwei Xu, Linfen Cao
doaj   +1 more source

Some Characterizations of Generalized Null Scrolls

open access: yesMathematics, 2019
In this work, a family of ruled surfaces named generalized null scrolls in Minkowski 3-space are investigated via the defined structure functions. The relations between the base curve and the ruling flow of the generalized null scroll are revealed.
Jinhua Qian   +2 more
doaj   +1 more source

Diameter Estimate in Geometric Flows

open access: yesMathematics, 2023
We prove the upper and lower bounds of the diameter of a compact manifold (M,g(t)) with dimRM=n(n≥3) and a family of Riemannian metrics g(t) satisfying some geometric flows. Except for Ricci flow, these flows include List–Ricci flow, harmonic-Ricci flow,
Shouwen Fang, Tao Zheng
doaj   +1 more source

A Comparison Principle for the Mean Curvature Flow Equation with Discontinuous Coefficients

open access: yesInternational Journal of Differential Equations, 2016
We study the level set equation in a bounded domain when the velocity of the interface is given by the mean curvature plus a discontinuous velocity. We prove a comparison principle for the initial-boundary value problem whose consequence is uniqueness of
Cecilia De Zan, Pierpaolo Soravia
doaj   +1 more source

Hyperbolic inverse mean curvature flow [PDF]

open access: yesCzechoslovak Mathematical Journal, 2019
In this paper, we prove the short-time existence of hyperbolic inverse (mean) curvature flow (with or without the specified forcing term) under the assumption that the initial compact smooth hypersurface of $\mathbb{R}^{n+1}$ ($n\geqslant2$) is mean convex and star-shaped.
Mao, Jing, Wu, Chuan-Xi, Zhou, Zhe
openaire   +3 more sources

Uniqueness of Closed Equilibrium Hypersurfaces for Anisotropic Surface Energy and Application to a Capillary Problem

open access: yesMathematical and Computational Applications, 2019
We study a variational problem for hypersurfaces in the Euclidean space with an anisotropic surface energy. An anisotropic surface energy is the integral of an energy density that depends on the surface normal over the considered hypersurface, which was ...
Miyuki Koiso
doaj   +1 more source

Graphical translators for mean curvature flow [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2019
In the published version of the article, there was an incorrect reference, and, consequently, a correction appeared in a subsequent issue of the journal.
Hoffman, D.   +3 more
openaire   +3 more sources

Mean Curvature Type Flow with Perpendicular Neumann Boundary Condition inside a Convex Cone

open access: yesAbstract and Applied Analysis, 2014
We investigate the evolution of hypersurfaces with perpendicular Neumann boundary condition under mean curvature type flow, where the boundary manifold is a convex cone.
Fangcheng Guo, Guanghan Li, Chuanxi Wu
doaj   +1 more source

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