Three Vortices in Spaces of Constant Curvature: Reduction, Poisson Geometry, and Stability

被引:5
|
作者
Borisov, Alexey V. [1 ]
Mamaev, Ivan S. [2 ]
Bizyaev, Ivan A. [1 ]
机构
[1] Udmurt State Univ, Ul Univ Skaya 1, Izhevsk 426034, Russia
[2] Moscow Inst Phys & Technol, Inst Per 9, Dolgoprudnyi 141700, Russia
基金
俄罗斯基础研究基金会;
关键词
Poisson geometry; point vortices; reduction; quadratic Poisson bracket; spaces of constant curvature; symplectic leaf; collinear configurations; 2 POINT VORTICES; VORTEX SOURCES; DEFORMATION FLOW; DYNAMICS; MOTION; SPHERE; SURFACES; FLUID; PLANE; WAVE;
D O I
10.1134/S1560354718050106
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
This paper is concerned with the problem of three vortices on a sphere S-2 and the Lobachevsky plane L-2. After reduction, the problem reduces in both cases to investigating a Hamiltonian system with a degenerate quadratic Poisson bracket, which makes it possible to study it using the methods of Poisson geometry. This paper presents a topological classification of types of symplectic leaves depending on the values of Casimir functions and system parameters.
引用
收藏
页码:613 / 636
页数:24
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