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Toda Equations and $\sigma$-Functions of Genera One and Two

Mathematical Physics 2015-06-26 v1 Algebraic Geometry math.MP

Abstract

We study the Toda equations in the continuous level, discrete level and ultradiscrete level in terms of elliptic and hyperelliptic σ\sigma and ψ\psi functions of genera one and two. The ultradiscrete Toda equation appears as a discrete-valuation of recursion relations of ψ\psi functions.

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Cite

@article{arxiv.math-ph/0305008,
  title  = {Toda Equations and $\sigma$-Functions of Genera One and Two},
  author = {Shigeki Matsutani},
  journal= {arXiv preprint arXiv:math-ph/0305008},
  year   = {2015}
}

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16 pages