Relative equilibrium configurations of point vortices on a sphere.Regular and Chaotic Dynamics Volume 18, Issue 4, July 2013, Pages 344-355

The problem of constructing and classifying equilibrium and relative equilibrium configurations of point vortices on a sphere is studied. A method which enables one to find any such configuration is presented. Configurations formed by the vortices placed at the vertices of Platonic solids are considered without making the assumption that the vortices possess equal in absolute value circulations. Several new configurations are obtained.
Author keywords
fixed equilibrium; Platonic solids; point vortices; relative equilibrium; sphere