Integrable Dynamics of Charges Related to Bilinear Hypergeometric Equation

Details Integrable Dynamics of Charges Related to Bilinear Hypergeometric Equation Integrable Dynamics of Charges Related to Bilinear Hypergeometric Equation

2002-10-09

arxiv.org/abs/math-ph/0210018v4

Commun.Math.Phys. 242 (2003) 251-275

Physics

Mathematical Physics

27 pages, Latex, A new corrected version of older submission

Scientific paper

10.1007/s00220-003-0944-z

A family of systems related to a linear and bilinear evolution of roots of polynomials in the complex plane is considered. Restricted to the line, the evolution induces dynamics of the Coulomb charges in external potentials, while its fixed points correspond to equilibria of charges (or point vortices in hydrodynamics) in the plane. The construction reveals a direct connection with the theories of the Calogero-Moser systems and Lie-algebraic differential operators. A study of the equilibrium configurations amounts in a construction (bilinear hypergeometric equation) for which the classical orthogonal and the Adler-Moser polynomials represent some particular cases

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