Abstract:
We investigate the stability problem for stationary rotation of five identical point vortices located at the vertices of a regular pentagon inside a circular domain. The main result is the proof of theorems which have been announced by the author in Doklady Physics (2004, vol. 49, no. 11, pp. 658–661).
Keywords:
point vortices, stationary motion, stability, resonance.
This work was supported by the Ministry of Education and Science of the Russian Federation within the framework of the Federal programs “Research and Development on Priority Directions of the Scientific and Technological Complex of Russia for the years 2007-2013” (contract No 16.516.11.6106), “Scientific and Scientific-Pedagogical Personnel of Innovative Russia for the years 2007-2013” (contract No 14.740.11.0877), and the Russian Foundation for Basic Research (Grants 11-05-01138, 11–05–91052 and 10-05-00646).