Errata and Addenda to: "Hydrodynamic Vortex on Surfaces" and "The Motion of a Vortex on a Closed Surface of Constant Negative Curvature"

Author(s)

Grotta-Ragazzo, Clodoaldo

• Document type: Journal article
• Source: JOURNAL OF NONLINEAR SCIENCE; v. 32, n. 5, p. 10-pg., 2022-10-01.

Abstract

The two papers in the title contain some equations that are not complete. The missing terms, which are of topological origin, were recently unveiled by Bjorn Gustafsson. In this note, we present the equations of Gustafsson in the case of a single vortex in a compact boundaryless surface, and show that many conclusions we have reached with the incomplete equations remain valid. It seems that the extra-terms in Gustafsson's equations can be explicitly written in terms of elementary functions only for the two-torus, and this is done at the end of this note. (AU)

• FAPESP's process: 16/25053-8 - Dynamics and geometry in low dimensions
• Grantee: André Salles de Carvalho
• Support Opportunities: Research Projects - Thematic Grants