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In this paper we introduce a new geometric flow with rotational invariance and prove that, under this kind of flow, an arbitrary smooth closed contractible hypersurface in the Euclidean space Rn+1 (n, 1) converges to Sn in the C1-topology…

偏微分方程分析 · 数学 2011-09-06 De-Xing Kong , Qiang Ru

We give a new method for proving the homomorphic property of a quantum stochastic ow satisfying a quantum stochastic differential equation with unbounded coefficients, under some further hypotheses. As an application, we prove a Trotter…

算子代数 · 数学 2016-11-25 Biswarup Das , Debashish Goswami , Kalyan B. Sinha

The new proposed "energy gradient theory," which physically explains the phenomena of flow instability and turbulent transition in shear flows and has been shown to be valid for parallel flows, is extended to curved flows in this study.…

流体动力学 · 物理学 2007-05-23 Hua-Shu Dou

We develop a general transfer-matrix formalism for determining the growth rate of the Rayleigh-Taylor instability in a fluid system with spatially varying density and viscosity. We use this formalism to analytically and numerically treat…

流体动力学 · 物理学 2025-02-18 Prashant Sharma

A fluid flow in a multiply connected domain generated by an arbitrary number of point vortices is considered. A stream function for this flow is constructed as a limit of a certain functional sequence using the method of images. The…

复变函数 · 数学 2016-10-04 Anna Zemlyanova , Ian Manly , Demond Handley

Presently flow and nonflow cannot be separated experimentally. Using Pythia simulations of p+p collisions we show that nonflow approximately factorizes. This fact may be used to disentangle flow and nonflow in heavy ion data by performing a…

核实验 · 物理学 2012-07-18 Daniel Kikola , Li Yi , ShinIchi Esumi , Fuqiang Wang , Wei Xie

In this note, we discuss the mean curvature flow of graphs of maps between Riemannian manifolds. Special emphasis will be placed on estimates of the flow as a non-linear parabolic system of differential equations. Several global existence…

微分几何 · 数学 2012-04-05 Mu-Tao Wang

J. Streets and G. Tian recently introduced symplectic curvature flow, a geometric flow on almost K\"ahler manifolds generalising K\"ahler-Ricci flow. The present article gives examples of explicit solutions to this flow of non-K\"ahler…

辛几何 · 数学 2012-02-08 Julian Pook

In this article we consider Cherry flows on torus which have two singularities: a source and a saddle, and no periodic orbits. We show that every Cherry flow admits a unique physical measure, whose basin has full volume. This proves a…

动力系统 · 数学 2016-05-18 Jiagang Yang

We revisit entropy methods to prove new sharp trace logarithmic Sobolev and sharp Gagliardo-Nirenberg-Sobolev inequalities on the half space, with a focus on the entropy inequality itself and not the actual flow, allowing for somewhat…

偏微分方程分析 · 数学 2021-12-28 Simon Zugmeyer

In the paper we consider the point measure that corresponds to Arratia flow. The central limit theorem of the multiple integrals with respect to this measure was obtained.

概率论 · 数学 2024-06-24 A. A. Dorogovtsev , E. V. Glinynaya

Knot Floer homology is a knot invariant defined using holomorphic curves. In more recent work, taking cues from bordered Floer homology,the authors described another knot invariant, called "bordered knot Floer homology", which has an…

几何拓扑 · 数学 2019-12-05 Zoltan Szabo , Peter Ozsvath

A survey of new geometric flows motivated by string theories is provided. Their settings can range from complex geometry to almost-complex geometry to symplectic geometry. From the PDE viewpoint, many of them can be viewed as intermediate…

微分几何 · 数学 2023-04-06 Duong H. Phong

We consider the geodesic flow for a rank one non-positive curvature closed manifold. We prove an asymptotic version of the Central Limit Theorem for families of measures constructed from regular closed geodesics converging to the…

动力系统 · 数学 2021-08-11 Daniel J. Thompson , Tianyu Wang

In this paper we obtain a very general Gauss-Green formula for weakly differentiable functions and sets of finite perimeter. This result is obtained by revisiting Anzellotti's pairing theory and by characterizing the measure pairing…

泛函分析 · 数学 2019-05-23 Graziano Crasta , Virginia De Cicco

Recently, based on the method of collective variables the statistical field theory for multicomponent inhomogeneous systems was formulated [O. Patsahan, I. Mryglod, J.-M. Caillol, Journal of Physical Studies, 2007, 11, 133]. In this letter…

统计力学 · 物理学 2012-07-13 O. Patsahan , I. Mryglod

We prove that on the typical translation surface the flow in almost every pair of directions are not isomorphic to each other and are in fact disjoint. It was not known if there were any translation surfaces other than torus covers with…

动力系统 · 数学 2017-07-12 Jon Chaika , Pascal Hubert

We show that for any $\epsilon<1$ and any $\mathcal{T}$ `drifting away from walls', Dirichlet's Theorem cannot be $\epsilon$-improved along $\mathcal{T}$ for Lebesgue almost every system of linear forms $Y$ (see the paper for definitions).…

数论 · 数学 2008-05-19 Dmitry Kleinbock , Barak Weiss

We define and study the harmonic heat flow for almost complex structures which are compatible with a Riemannian structure $(M, g)$. This is a tensor-valued version of harmonic map heat flow. We prove that if the initial almost complex…

微分几何 · 数学 2019-07-30 Weiyong He , Bo Li

In this paper, flows of a viscid fluids on curves are considered. Symmetry algebras and the corresponding fields of differential invariants are found. We study their dependence on thermodynamic states of media, and provide classification of…

流体动力学 · 物理学 2020-06-29 Anna Duyunova , Valentin Lychagin , Sergey Tychkov