Abstract
We provide a detailed treatment of Ruijsenaars–Toda (RT) hierarchy with special emphasis on its the theta function representation of all algebro-geometric solutions. The basic tools involve hyperelliptic curve Kp associated with the Burchnall–Chaundy polynomial, Dubrovin-type equations for auxiliary divisors and associated trace formulas. With the help of a fundamental meromorphic function ϕ, Baker–Akhiezer vector Ψ on Kp, the complex-valued algebro-geometric solutions of RT hierarchy are derived.
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More From: Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena
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