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Using the generalized perturbation reduction method the scalar nonlinear Schr\"odinger equation is transformed to the coupled nonlinear Schr\"odinger equations for auxiliary functions. A solution in the form of a two-component vector…

Exactly Solvable and Integrable Systems · Physics 2020-12-23 G. T. Adamashvili

The generalized equation for the study of two-component nonlinear waves in different fields of physics is considered. In special cases, this equation is reduced to a set of the various well-known equations describing nonlinear solitary…

Pattern Formation and Solitons · Physics 2024-07-02 G. T. Adamashvili

The general form of the cubic Boussinesq-type equation is considered. In special cases, this equation is reduced to the three different versions of the cubic Boussinesq equations and also the generalized modified cubic Boussinesq equation.…

Pattern Formation and Solitons · Physics 2023-05-17 G. T. Adamashvili

The generalized perturbative reduction method is used to find the two-component vector breather solution of the Born-Infeld equation $ U_{tt} -C U_{zz} = - A U_{t}^{2} U_{zz} - \sigma U_{z}^{ 2} U_{tt} + B U_{z} U_{t} U_{zt} $. It is shown…

Pattern Formation and Solitons · Physics 2021-06-11 G. T. Adamashvili

The generalized perturbative reduction method is used to find the two-component vector breather solution of the nonlinear Klein-Gordon equation. It is shown that the nonlinear pulse oscillates with the sum and difference of frequencies and…

Pattern Formation and Solitons · Physics 2021-07-27 G. T. Adamashvili

A nonlinear wave equation that describes different nonlinear effects in various fields of research was considered. In two particular cases, this equation was reduced to the Sine-Gordon equation and the Born-Infeld equation. Using the slowly…

Pattern Formation and Solitons · Physics 2023-07-07 G. T. Adamashvili

Two different versions of cubic sixth-order generalised Boussinesq-type wave equations are considered in this study. A generalised perturbation reduction method is used to solve these equations, which allows the reduction of considered…

Exactly Solvable and Integrable Systems · Physics 2025-03-05 G. T. Adamashvili

In this work, we employ the generalized perturbation reduction method to find the two-component vector breather solution of the cubic Boussinesq equation $U_{tt} - C U_{zz} - D U_{zzzz}+G (U^{3})_{zz}=0$. Explicit analytical expressions for…

Mesoscale and Nanoscale Physics · Physics 2021-05-17 G. T. Adamashvili

A theory of optical nonresonance vector pulsing solitons in a Kerr media is considered. By using the perturbative reduction method the wave equation is transformed to the coupled nonlinear Schrodinger equations. The profile of the optical…

Pattern Formation and Solitons · Physics 2018-04-10 G. T. Adamashvili , N. T. Adamashvili , M. D. Peikrishvili , R. R. Koplatadze

In this paper, we use Hirota's bilinear method to directly construct periodic wave solutions of nonlinear equations. The asymptotic property of periodic wave solutions are analyzed. It is shown that well-known soliton solutions can be…

Exactly Solvable and Integrable Systems · Physics 2016-09-08 H. H. Dai , E. G. Fan X. G. Geng

The $N$-soliton solution is presented for a two-component modified nonlinear Schr\"odinger equation which describes the propagation of short pulses in birefringent optical fibers. The solution is found to be expressed in terms of…

Exactly Solvable and Integrable Systems · Physics 2011-07-06 Yoshimasa Matsuno

We obtain the bi-Hamiltonian structure for some of the two-component short pulse equations proposed in the literature to generalize the original short pulse equation when polarized pulses propagate in anisotropic media.

Exactly Solvable and Integrable Systems · Physics 2013-01-08 J. C. Brunelli , S. Sakovich

We propose a novel multi-component system of nonlinear equations that generalizes the short pulse (SP) equation describing the propagation of ultra-short pulses in optical fibers. By means of the bilinear formalism combined with a hodograph…

Exactly Solvable and Integrable Systems · Physics 2015-06-03 Yoshimasa Matsuno

The Hirota equation is a higher order extension of the nonlinear Schroedinger equation by incorporating third order dispersion and one form of self steepening effect. New periodic waves for the discrete Hirota equation are given in terms of…

Pattern Formation and Solitons · Physics 2017-10-16 Robert Conte , Kwok-wing Chow

We consider coupled nonlinear Schrodinger equations (CNLSE) which govern the propagation of nonlinear waves in bimodal optical fibers. The nonlinear transform of a dual-frequency signal is used to generate an ultra-short-pulse train. To…

Pattern Formation and Solitons · Physics 2009-11-10 K. W. Chow , K. Nakkeeran , Boris A. Malomed

The distinctive features of passing the two-component extremely short pulses through the nonlinear media are discussed. The equations considered describe the propagation in the two-level anisotropic medium of the electromagnetic pulses…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 N. V. Bakhar , N. V. Ustinov

In this paper, we present the two-dimensional generalized nonlinear Schr\"odinger equations with the Lax pair. These equations are related to many physical phenomena in the Bose-Einstein condensates, surface waves in deep water and…

Exactly Solvable and Integrable Systems · Physics 2019-09-04 Cestmir Burdik , Gaukhar Shaikhova , Berik Rakhimzhanov

In this letter we examine the two-component Hirota (TH) equations which describes the pulse propagation in a coupled fiber with higher-order dispersion and self-steepening. As the TH equations is a complete integrable system, which admits a…

Analysis of PDEs · Mathematics 2018-09-20 Fang Fang , Beibei Hu , Ling Zhang , Ning Zhang

Under investigation in this paper are the coupled complex short pulse equations, which describe the propagation of ultra-short optical pulses in cubic nonlinear media.Through the Hirota method, bright-dark one- and two-soliton solutions are…

Pattern Formation and Solitons · Physics 2016-05-30 Bo-Ling Guo , Yu-Feng Wang

Riemann theta functions are used to construct one-periodic and two-periodic wave solutions to a class of (2+1)-dimensional Hirota bilinear equations. The basis for the involved solution analysis is the Hirota bilinear formulation, and the…

Exactly Solvable and Integrable Systems · Physics 2015-05-13 Wen-Xiu Ma , Ruguang Zhou , Liang Gao
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