Abstract
We construct the pole divisor of the wavefunction for real regular bounded multi-soliton KP-II solutions represented by points in \(Gr^\mathrm{TP} (2,4)\) on the reducible rational \(\mathtt M\)-curve \(\varGamma ({\mathcal {N}}_T)\) recently introduced in Abenda and Grinevich (KP theory, plane-bipartite networks in the disk and rational degenerations of \({\mathtt M}\)-curves, 2018. arXiv:1801.00208) and we give evidence that the asymptotic behavior of its zero divisor in the real (x, y)-plane at fixed time t is compatible with the behavior of the soliton solution classified in Chakravarty and Kodama (Stud Appl Math 123:83–151, 2009).
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We warmly thank P.G. Grinevich for useful discussions.
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We dedicate our paper to Tommaso A. Ruggeri.
This research has been partially supported by GNFM-INDAM and RFO University of Bologna. The results contained in the present paper have been partially presented in Wascom 2017.
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Abenda, S. On some properties of KP-II soliton divisors in \(Gr^\mathrm{TP}(2,4)\). Ricerche mat 68, 75–90 (2019). https://doi.org/10.1007/s11587-018-0381-0
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DOI: https://doi.org/10.1007/s11587-018-0381-0