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The matrix realization of affine Jacobi varieties and the extended Lotka-Volterra lattice

Rei Inoue
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Abstract

We study completely integrable Hamiltonian systems whose monodromy matrices are related to the representatives for the set of gauge equivalence classes $\boldsymbol{\mathcal{M}}_F$ of polynomial matrices. Let $X$ be the algebraic curve given by the common characteristic equation for $\boldsymbol{\mathcal{M}}_F$. We construct the isomorphism from the set of representatives to an affine part of the Jacobi variety of $X$. This variety corresponds to the invariant manifold of the system, where the Hamiltonian flow is linearized. As the application, we discuss the algebraic completely integrability of the extended Lotka-Volterra lattice with a periodic boundary condition.

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Rei Inoue. 2003-09-22. The matrix realization of affine Jacobi varieties and the extended Lotka-Volterra lattice. https://doi.org/10.1088/0305-4470/37/4/015

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