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Convergence of nonlocal geometric flows to anisotropic mean curvature motion [PDF]

open access: yesDiscrete and Continuous Dynamical Systems. Series A, 2018
We consider nonlocal curvature functionals associated with positive interaction kernels, and we show that local anisotropic mean curvature functionals can be retrieved in a blow-up limit from them.
A. Cesaroni, V. Pagliari
semanticscholar   +6 more sources

Secondary flow and streamwise vortices in three-dimensional staggered wavy-wall turbulence

open access: yesFlow, 2023
The present paper simplifies the naturally formed dunes (riverbeds) as large-scale three-dimensional staggered wavy walls to investigate the features of the accompanying secondary flows and streamwise vortices via large-eddy simulation.
Enwei Zhang   +4 more
doaj   +2 more sources

Forced hyperbolic mean curvature flow [PDF]

open access: yes, 2012
In this paper, we investigate two hyperbolic flows obtained by adding forcing terms in direction of the position vector to the hyperbolic mean curvature flows in \cite{klw,hdl}.
Jing Mao
semanticscholar   +4 more sources

Propagation of gravity waves and its effects on pseudomomentum flux in a sudden stratospheric warming event [PDF]

open access: yesAtmospheric Chemistry and Physics, 2020
Effects of realistic propagation of gravity waves (GWs) on distribution of GW pseudomomentum fluxes are explored using a global ray-tracing model for the 2009 sudden stratospheric warming (SSW) event. Four-dimensional (4D; x–z and t) and two-dimensional (
I.-S. Song   +6 more
doaj   +1 more source

Minimal cones and self-expanding solutions for mean curvature flows [PDF]

open access: yesMathematische Annalen, 2019
In this paper, we study self-expanding solutions for mean curvature flows and their relationship to minimal cones in Euclidean space. Ilmanen (Lectures on mean curvature flow and related equations (Trieste Notes), 1995) proved the existence of self ...
Q. Ding
semanticscholar   +2 more sources

Generalized Lagrangian mean curvature flows: The cotangent bundle case [PDF]

open access: yesJournal für die Reine und Angewandte Mathematik, 2016
In [18], we defined a generalized mean curvature vector field on any almost Lagrangian submanifold with respect to a torsion connection on an almost Kähler manifold. The short time existence of the corresponding parabolic flow was established.
Knut Smoczyk, Mao-Pei Tsui, Mu-Tao Wang
semanticscholar   +1 more source

A Rigorous Sharp Interface Limit of a Diffuse Interface Model Related to Tumor Growth [PDF]

open access: yesJournal of nonlinear science, 2016
In this paper, we study the rigorous sharp interface limit of a diffuse interface model related to the dynamics of tumor growth, when a parameter $$\varepsilon $$ε, representing the interface thickness between the tumorous and non-tumorous cells, tends ...
E. Rocca, Riccardo Scala
semanticscholar   +1 more source

A local regularity theorem for mean curvature flow [PDF]

open access: yes, 2005
This paper proves curvature bounds for mean curvature flows and other related flows in regions of spacetime where the Gaussian densities are close to 1.
F. Schulze, B. White
semanticscholar   +1 more source

Translating solutions of non-parametric mean curvature flows with capillary-type boundary value problems

open access: yesCommunications on Pure and Applied Analysis, 2019
In this note, we study the mean curvature flow and the prescribed mean curvature type equation with general capillary-type boundary condition, which is \begin{document}$ u_{\nu} = -\phi(x)(1+|Du|^2)^\frac{1-q}{2} $\end{document} for any parameter \begin ...
Jun Wang, Wei Wei, Jin-Juan Xu
semanticscholar   +1 more source

On the late phase of relaxation of two-dimensional fluids: turbulence of unitons

open access: yesNew Journal of Physics, 2017
The two-dimensional ideal fluid and the plasma confined by a strong magnetic field exhibit an intrinsic tendency to organization due to the inverse spectral cascade. In the asymptotic states reached at relaxation the turbulence has vanished and there are
F Spineanu, M Vlad
doaj   +1 more source

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