Abstract
We construct a family of two-dimensional stationary Schrödinger operators with rapidly decaying smooth rational potentials and nontrivial L2 kernels. We show that some of the constructed potentials generate solutions of the Veselov-Novikov equation that decay rapidly at infinity, are nonsingular at t = 0, and have singularities at finite times t ≥ t0 > 0.
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Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 157, No. 2, pp. 188–207, November, 2008.
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Taimanov, I.A., Tsarev, S.P. Two-dimensional rational solitons and their blowup via the moutard transformation. Theor Math Phys 157, 1525–1541 (2008). https://doi.org/10.1007/s11232-008-0127-3
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DOI: https://doi.org/10.1007/s11232-008-0127-3