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Corpus ID: 85542584

KP theory, plabic networks in the disk and rational degenerations of M--curves

@article{Abenda2017KPTP,
title={KP theory, plabic networks in the disk and rational degenerations of M--curves},
author={S. Abenda and P. Grinevich},
journal={arXiv: Mathematical Physics},
year={2017}
}

We complete the program of Ref. [3,5] of connecting totally non-negative Grassmannians to the reality problem in KP finite-gap theory via the assignment of real regular divisors on rational degenerations of M-curves for the class of real regular multi-line soliton solutions of KP II equation whose asymptotic behavior has been combinatorially characterized by Chakravarthy, Kodama and Williams. We use the plabic networks in the disk introduced by Postnikov to parametrize positroid cells in… Expand