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arXiv · 2103.11975

On Finiteness of Stationary Configurations of the Planar Five-vortex Problem

Xiang Yu·Shuqiang Zhu
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Abstract

The finiteness problem of stationary configurations for the planar five-vortex problem is considered in this paper. The numbers of equilibria and rigidly translating configurations are shown to be at most 6 and 24 respectively. The numbers of relative equilibria and collapse configurations are shown to be finite, except perhaps if the 5-tuple of vorticities belongs to a given codimension 2 subvariety of the vorticity space. In particular, if the vorticities are of the same sign, the number of stationary configurations is finite.

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Xiang Yu, Shuqiang Zhu. 2021-03-22. On Finiteness of Stationary Configurations of the Planar Five-vortex Problem. https://arxiv.org/abs/2103.11975

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