English

Four-dimensional Painlev\'e-type difference equations

Classical Analysis and ODEs 2021-12-07 v2 Mathematical Physics math.MP

Abstract

We focus on Fuchsian equations with four accessory parameters and three singular points. We see that the Fuchsian equations admit a "degeneration scheme" in some sense, which is expected to give rise to a degeneration scheme of discrete isomodromic deformation equations with four-dimensional phase space. We compute an example of discrete isomonodromic deformation equations of a certain Fuchsian equation.

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Cite

@article{arxiv.1802.00116,
  title  = {Four-dimensional Painlev\'e-type difference equations},
  author = {Hiroshi Kawakami},
  journal= {arXiv preprint arXiv:1802.00116},
  year   = {2021}
}

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21 pages