Clarkson, P.A. (2009) Vortices and Polynomials. Studies in Applied Mathematics, 123 (1). pp. 37-62. ISSN 0022-2526 .
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| Official URL http://dx.doi.org/10.1111/j.1467-9590.2009.00446.x |
Abstract
The relationship between point vortex dynamics and the properties of polynomials with roots at the vortex positions is discussed. Classical polynomials, such as the Hermite polynomials, have roots that describe the equilibria of identical vortices on the line. Stationary and uniformly translating vortex configurations with vortices of the same strength but positive or negative orientation are given by the zeros of the Adler–Moser polynomials, which arise in the description of rational solutions of the Korteweg–de Vries equation. For quadrupole background flow, vortex configurations are given by the zeros of polynomials expressed as Wronskians of Hermite polynomials. Further, new solutions are found in this case using the special polynomials arising in the description of rational solutions of the fourth Painlevé equation.
| Item Type: | Article |
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| Additional information: | Proceedings Paper Conference Information: International Conference on Nonlinear Waves - Theory and Application Beijing,China, June 9-12th 2008 |
| Subjects: | Q Science > QA Mathematics (inc Computing science) > QA372 Ordinary differential equations Q Science > QA Mathematics (inc Computing science) > QA377 Partial differential equations |
| Divisions: | Faculties > Science Technology and Medical Studies > School of Mathematics Statistics and Actuarial Science > Applied Mathematics |
| Depositing User: | Peter A Clarkson |
| Date Deposited: | 25 Sep 2009 08:36 |
| Last Modified: | 25 Sep 2009 08:36 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/20510 (The current URI for this page, for reference purposes) |
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