EXTREME SUPERPOSITION: ROGUE WAVES OF INFINITE ORDER AND THE PAINLEVE-III HIERARCHY

被引:78
作者
Bilman, Deniz [1 ]
Ling, Liming [2 ]
Miller, Peter D. [3 ]
机构
[1] Univ Cincinnati, Dept Math Sci, Cincinnati, OH 45221 USA
[2] South China Univ Technol, Sch Math, Guangzhou, Peoples R China
[3] Univ Michigan, Dept Math, Ann Arbor, MI 48109 USA
基金
中国国家自然科学基金; 美国国家科学基金会;
关键词
NONLINEAR SCHRODINGER-EQUATION; RIEMANN-HILBERT PROBLEMS; TRITRONQUEE SOLUTION; INVERSE SCATTERING; STEEPEST DESCENT; UNIVERSALITY; ASYMPTOTICS; CATASTROPHE;
D O I
10.1215/00127094-2019-0066
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We study the fundamental rogue wave solutions of the focusing nonlinear Schrodinger equation in the limit of large order. Using a recently proposed Riemann-Hilbert representation of the rogue wave solution of arbitrary order k, we establish the existence of a limiting profile of the rogue wave in the large-k limit when the solution is viewed in appropriate rescaled variables capturing the near-field region where the solution has the largest amplitude. The limiting profile is a new particular solution of the focusing nonlinear Schrodinger equation in the rescaled variables-the rogue wave of infinite order-which also satisfies ordinary differential equations with respect to space and time. The spatial differential equations are identified with certain members of the Painleve-III hierarchy. We compute the far-field asymptotic behavior of the near-field limit solution and compare the asymptotic formulas with the exact solution using numerical methods for solving Riemann-Hilbert problems. In a certain transitional region for the asymptotics, the near-field limit function is described by a specific globally defined tritronquee solution of the Painleve-II equation. These properties lead us to regard the rogue wave of infinite order as a new special function.
引用
收藏
页码:671 / 760
页数:90
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