Abstract
An initial boundary-value problem for the Hirota equation on the half-line, 0 < x < ∞, t > 0, is analysed by expressing the solution q(x, t) in terms of the solution of a matrix Riemann-Hilbert (RH) problem in the complex k-plane. This RH problem has explicit (x, t) dependence and it involves certain functions of k referred to as the spectral functions. Some of these functions are defined in terms of the initial condition q(x, 0) = q0(x), while the remaining spectral functions are defined in terms of the boundary values q(0, t) = g0(t), qx(0, t) = g1(t) and qxx(0, t) = g2(t). The spectral functions satisfy an algebraic global relation which characterizes, say, g2(t) in terms of {q0(x), g0(t), g1(t)}. The spectral functions are not independent, but related by a compatibility condition, the so-called global relation.
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The author sincerely thank Prof. Engui Fan and Dr. Jian Xu for many useful discussions.
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This work was supported by the China Postdoctoral Science Foundation (No. 2015M580285).
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Huang, L. The Initial-Boundary-Value Problems for the Hirota Equation on the Half-Line. Chin. Ann. Math. Ser. B 41, 117–132 (2020). https://doi.org/10.1007/s11401-019-0189-6
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DOI: https://doi.org/10.1007/s11401-019-0189-6