Deift, P. A.; Zhou, X. Long-time asymptotics for integrable systems. Higher order theory. (English) Zbl 0812.35122 Commun. Math. Phys. 165, No. 1, 175-191 (1994). MSC: 35Q53 37J35 37K10 35C20 PDFBibTeX XMLCite \textit{P. A. Deift} and \textit{X. Zhou}, Commun. Math. Phys. 165, No. 1, 175--191 (1994; Zbl 0812.35122) Full Text: DOI
Sukhanov, V. V. Asymptotic behavior of solutions of the nonlinear string equation for large times. (English. Russian original) Zbl 0692.35099 J. Sov. Math. 46, No. 5, 2126-2136 (1989); translation from Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 161, 122-138 (1987). MSC: 35Q99 37J35 37K10 35B40 PDFBibTeX XMLCite \textit{V. V. Sukhanov}, J. Sov. Math. 46, No. 5, 2126--2136 (1989; Zbl 0692.35099); translation from Zap. Nauchn. Semin. Leningr. Otd. Mat. Inst. Steklova 161, 122--138 (1987) Full Text: DOI