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Higher order and multicomponent generalizations of the nonlinear Schrodinger equation are important in various applications, e.g., in optics. One of these equations, the integrable Sasa-Satsuma equation, has particularly interesting soliton…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 C. Gilson , J. Hietarinta , J. Nimmo , Y. Ohta

General rogue wave solutions to the Sasa-Satsuma equation are constructed by the Kadomtsev-Petviashvili (KP) hierarchy reduction method. These solutions are presented in three different forms. The first form is expressed in terms of…

Exactly Solvable and Integrable Systems · Physics 2022-06-07 Chengfa Wu , Guangxiong Zhang , Changyan Shi , Bao-Feng Feng

We consider the Sasa-Satsuma (SS) and Nonlinear Schr\"odinger (NLS) equations posed along the line, in 1+1 dimensions. Both equations are canonical integrable $U(1)$ models, with solitons, multi-solitons and breather solutions, see Yang for…

Analysis of PDEs · Mathematics 2021-02-24 Miguel A. Alejo , Luca Fanelli , Claudio Muñoz

The Sasa-Satsuma equation is an integrable higher-order nonlinear Schr\"odinger equation. Higher-order and multicomponent generalisations of the nonlinear Schr\"odinger equation are important in various applications, e.g., in optics. One of…

Exactly Solvable and Integrable Systems · Physics 2015-12-22 Jonathan J. C. Nimmo , Halis Yilmaz

In this paper, we are concerned with various soliton solutions to the coupled Hirota equation, as well as to the Sasa-Satsuma equation which can be viewed as one reduction case of the coupled Hirota equation. First, we derive bright-bright,…

Exactly Solvable and Integrable Systems · Physics 2025-02-19 Changyan Shi , Bingyuan Liu , Bao-Feng Feng

In this paper, we derive general bright-dark soliton solutions to the coupled Sasa-Satsuma (CSS) equation using the Kadomtsev-Petviashvili (KP) reduction method. Since the CSS equation is a special case of the four-component Hirota…

Exactly Solvable and Integrable Systems · Physics 2026-03-10 Changyan Shi , Xiyao Chen , Guangxiong Zhang , Chengfa Wu , Bao-Feng Feng

The Sasa-Satsuma equation, a higher-order nonlinear Schr\"{o}dinger equation, is an important integrable equation, which displays the propagation of femtosecond pulses in optical fibers. In this paper, we investigate a generalized…

Exactly Solvable and Integrable Systems · Physics 2023-06-07 Hong-Qian Sun , Zuo-Nong Zhu

New two-component vector breather solution of the modified Benjamin-Bona-Mahony (MBBM) equation is considered. Using the generalized perturbation reduction method the MBBM equation is reduced to the coupled nonlinear Schr\"odinger equations…

Pattern Formation and Solitons · Physics 2020-01-23 G. T. Adamashvili

Recently, an integrable system of coupled (2+1)-dimensional nonlinear Schrodinger (NLS) equations was introduced by Fokas (eq. (18) in Nonlinearity 29}, 319324 (2016)). Following this pattern, two integrable equations [eqs.2 and 3] with…

Pattern Formation and Solitons · Physics 2018-08-01 Yulei Cao , Boris A. Malomed , Jingsong He

We formulate a $3\times3$ Riemann-Hilbert problem to solve the Cauchy problem for the Sasa-Satsuma equation on the line, which allows us to give a representation for the solution of Sasa-Satsuma equation. We then apply the method of…

Analysis of PDEs · Mathematics 2018-07-25 Boling Guo , Nan Liu

We consider the Hirota equation (the discrete analog of the generalized Toda system) over a finite field. We present the general algebro-geometric method of construction of solutions of the equation. As an example we construct analogs of…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 Adam Doliwa , Mariusz Bialecki , Pawel Klimczewski

We present new solutions in terms of elementary functions of the multi-component nonlinear Schr\"odinger equations and known solutions of the Davey-Stewartson equations such as multi-soliton, breather, dromion and lump solutions. These…

Mathematical Physics · Physics 2011-06-02 Caroline Kalla

We derive a novel variant of the Blaszak-Szum lattice equation by introducing a new class of trigonometric-type bilinear operators. By employing Hirota's bilinear method, we obtain the Gram-type determinant solution of the variant…

Exactly Solvable and Integrable Systems · Physics 2025-12-17 Wei-Kang Xie , Guo-Fu Yu

The aim of this paper is to apply Hirota's bilinear method to the integrable discrete Manakov system in the focusing dispersion regime in order to construct and analyze soliton and breather solutions. After deriving the general bilinear…

Exactly Solvable and Integrable Systems · Physics 2026-05-26 Uyen Le , Alexander Chernyavsky , Barbara Prinari

The Yajima-Oikawa (YO) system describes the resonant interaction between long and short waves under certain condition. In this paper, through the KP hierarchy reduction, we construct the breather solutions for the YO system in one- and…

Exactly Solvable and Integrable Systems · Physics 2017-12-05 Junchao Chen , Yong Chen , Bao-Feng Feng , Ken-ichi Maruno

Exact integrability of the Sasa Satsuma eqation (SSE) in the Liouville sense is established by showing the existence of an infinite set of conservation laws. The explicit form of the conserved quantities in term of the fields are obtained…

solv-int · Physics 2015-06-26 Sasanka Ghosh , Anjan Kundu , Sudipta Nandy

We numerically realize breather gas for the focusing nonlinear Schr\"odinger equation. This is done by building a random ensemble of N $\sim$ 50 breathers via the Darboux transform recursive scheme in high precision arithmetics. Three types…

Pattern Formation and Solitons · Physics 2021-04-14 Giacomo Roberti , Gennady El , Alexander Tovbis , François Copie , Pierre Suret , Stéphane Randoux

In this paper, we study the bilinear form and the general N-soliton solution for a two-component Hunter-Saxton (2-HS) equation, which is the short wave limit of a twocomponent Camassa-Holm equation. By defining a hodograph transformation…

Exactly Solvable and Integrable Systems · Physics 2015-08-04 Bao-Feng Feng , Senyue Lou , Ruoxia Yao

In this work, the inverse scattering transform of the three-component coupled Sasa-Satsuma equation is investigated via the Riemann-Hilbert method. Firstly we consider a Lax pair associated with a $7\times 7$ matrix spectral problem for the…

Analysis of PDEs · Mathematics 2021-12-07 Xiu-Bin Wang , Bo Han

In this paper, we investigate the nonlocal generalized Sasa-Satsuma (ngSS) equation based on an improved Riemann-Hilbert method (RHM). Different from the traditional RHM, the $t$-part of the Lax pair plays a more important role rather than…

Mathematical Physics · Physics 2023-09-01 Guixian Wang , Xiu-Bin Wang , Haie Long , Bo Han
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