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In this paper, by means of similarity transformations we study exact analytical solutions for a generalized nonlinear Schr$\ddot{\mbox{o}}$dinger equation with variable coefficients. This equation appears in literature describing the…

Mathematical Physics · Physics 2016-05-25 J. Escorcia , E. Suazo

This work is concerned with the study of explicit solutions for generalized coupled reaction-diffusion and Burgers-type systems with variable coefficients. Including nonlinear models with variable coefficients such as diffusive…

Mathematical Physics · Physics 2024-06-26 José M. Escorcia , Erwin Suazo

In a previous paper (Matsuno 2011 {\it J. Phys. A: Math. Theore.} {\bf 44} 495202), we have presented a determinantal expression of the bright $N$-soliton solution for a multi-component modified nonlinear Schr\"odinger (NLS) system with…

Exactly Solvable and Integrable Systems · Physics 2019-04-04 Yoshimasa Matsuno

We investigate non-autonomous solitons in a general coherently coupled nonlinear Schr\"odinger (CCNLS) system with temporally modulated nonlinearities and with an external harmonic oscillator potential. This general CCNLS system encompasses…

Pattern Formation and Solitons · Physics 2020-08-17 R. Babu Mareeswaran , K. Sakkaravarthi , T. Kanna

We construct exact soliton solutions of integrable multicomponent nonlinear Schr\"odinger (NLS) equations under general nonvanishing boundary conditions. Different components of the vector (or matrix) dependent variable can approach plane…

Exactly Solvable and Integrable Systems · Physics 2013-10-25 Takayuki Tsuchida

In this paper, we report a more general class of nondegenerate soliton solutions, associated with two distinct wave numbers in different modes, for a certain class of physically important integrable two component nonlinear Schr\"{o}dinger…

Exactly Solvable and Integrable Systems · Physics 2019-12-10 S. Stalin , R. Ramakrishnan , M. Lakshmanan

We investigate the nonisospectral effects of a semi-discrete nonlinear Schr\"{o}dinger equation, which is a direct integrable discretisation of its continuous counterpart. Bilinear form and double casoratian solution of the equation are…

Exactly Solvable and Integrable Systems · Physics 2020-11-09 Abdselam Silem , Hua Wu , Da-jun Zhang

We construct one soliton solutions for the nonlinear Schroedinger equation with variable quadratic Hamiltonians in a unified form by taking advantage of a complete (super) integrability of generalized harmonic oscillators. The soliton wave…

Mathematical Physics · Physics 2010-11-25 Erwin Suazo , Sergei K. Suslov

Exact analytical soliton solutions play an important role in soliton fields. Soliton solutions were obtained with some special constraints on the nonlinear parameters in nonlinear coupled systems, but they usually do not holds in real…

Pattern Formation and Solitons · Physics 2022-08-12 N. Mao , L. -C. Zhao

We introduce a model based on a system of coupled nonlinear Schrodinger (NLS) equations with opposite signs infront of the kinetic and gradient terms in the two equations. It also includes time-dependent nonlinearity coefficients and a…

Quantum Gases · Physics 2015-07-03 R. Radha , P. S. Vinayagam , J. B. Sudharsan , Boris. A. Malomed

We study standard and nonlocal nonlinear Schr\"{o}dinger (NLS) equations obtained from the coupled NLS system of equations (Ablowitz-Kaup-Newell-Segur (AKNS) equations) by using standard and nonlocal reductions respectively. By using the…

Exactly Solvable and Integrable Systems · Physics 2018-06-28 Metin Gürses , Aslı Pekcan

In this paper we show a systematical method to obtain exact solutions of the nonautonomous nonlinear Schr\"odinger (NLS) equation. An integrable condition is first obtained by the Painlev\`e analysis, which is shown to be consistent with…

Pattern Formation and Solitons · Physics 2010-10-20 Dun Zhao , Xu-Gang He , Hong-Gang Luo

The Nonlinear Schr\"odinger (NLS) equation is widely used in everywhere of natural science. Various nonlinear excitations of the NLS equation have been found by many methods. However, except for the soliton-soliton interactions, it is very…

Exactly Solvable and Integrable Systems · Physics 2013-07-16 S. Y. Lou , Xue-Ping Cheng , Xiao-Yan Tang

Rogue waves are extraordinarily high and steep isolated waves, which appear suddenly in a calm sea and disappear equally fast. However, though the Rogue waves are localized surface waves, their theoretical models and experimental…

Exactly Solvable and Integrable Systems · Physics 2015-03-13 Anjan Kundu , Abhik Mukherjee , Tapan Naskar

We analyse the structure of the exact, dark and bright soliton solutions of the driven non-linear Schr\"odinger equation. It is found that, a wide class of solutions of the higher order non-linear Schr\"odinger equation with a source can…

Exactly Solvable and Integrable Systems · Physics 2007-05-23 Vivek M Vyas , T Soloman Raju , C Nagaraja Kumar , Prasanta K Panigrahi

We present the exact bright one-soliton and two-soliton solutions of the integrable three coupled nonlinear Schroedinger equations (3-CNLS) by using the Hirota method, and then obtain them for the general $N$-coupled nonlinear Schroedinger…

Exactly Solvable and Integrable Systems · Physics 2009-11-07 T. Kanna , M. Lakshmanan

A generalized inverse scattering method has been applied to the linear problem associated with the coupled higher order nonlinear schr\"odinger equation to obtain it's $N$-soliton solution. An infinite number of conserved quantities have…

Exactly Solvable and Integrable Systems · Physics 2019-06-14 Sudipta Nandy

We investigate the long time dynamics of the nonlinear Schr\"odinger equation (NLS) with combined powers on the waveguide manifold $\mathbb{R}^d\times\mathbb{T}$. Different from the previously studied NLS-models with single power on the…

Analysis of PDEs · Mathematics 2024-09-25 Luigi Forcella , Yongming Luo , Zehua Zhao

We consider soliton resolution for the Calogero--Moser derivative nonlinear Schr\"odinger equation (CM-DNLS). A rigorous PDE analysis of (CM-DNLS) was recently initiated by G\'erard and Lenzmann, who demonstrated its Lax pair structure.…

Analysis of PDEs · Mathematics 2026-01-22 Taegyu Kim , Soonsik Kwon

We derive generalized nonlinear wave solution formula for mixed coupled nonlinear Sch\"odinger equations (mCNLSE) by performing the unified Darboux transformation. We give the classification of the general soliton formula on the nonzero…

Exactly Solvable and Integrable Systems · Physics 2015-11-06 Liming Ling , Li-Chen Zhao , Boling Guo
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