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In a previous work, we show that the solution of the initial-boundary value problem for the two-component nonlinear Schr\"odinger equation on the finite interval can be expressed in terms of the solution of a $3\times 3$ Riemann-Hilbert…

Exactly Solvable and Integrable Systems · Physics 2015-12-22 Jian Xu , Engui Fan

In this paper, we explore the initial-boundary value (IBV) problem for an integrable spin-1 Gross-Pitaevskii system with a 4x4 Lax pair on the finite interval by extending the Fokas unified transform approach. The solution of this system…

Exactly Solvable and Integrable Systems · Physics 2021-11-24 Zhenya Yan

In this paper, we apply Fokas unified method to study initial-boundary value problems for the two-component Gerdjikov-Ivanov equation formulated on the finite interval with $3 \times 3$ Lax pairs. The solution can be expressed in terms of…

Exactly Solvable and Integrable Systems · Physics 2017-11-22 Qiaozhen Zhu , Jian Xu , Engui Fan

We investigate the initial-boundary value problem for the integrable spin-1 Gross-Pitaevskii (GP) equations with a 4x4 Lax pair on the half-line. The solution of this system can be obtained in terms of the solution of a 4x4 matrix…

Exactly Solvable and Integrable Systems · Physics 2017-06-07 Zhenya Yan

We present an approach for analyzing initial-boundary value problems which is formulated on the finite interval ($0\le x\le L$, where $L$ is a positive constant) for integrable equations whose Lax pairs involve $3\times 3$ matrices.…

Exactly Solvable and Integrable Systems · Physics 2015-09-10 Jian Xu , Engui Fan

Boundary value problems for integrable nonlinear evolution PDEs formulated on the half-line can be analyzed by the unified method introduced by one of the authors and used extensively in the literature. The implementation of this general…

Analysis of PDEs · Mathematics 2015-05-30 J. Lenells , A. S. Fokas

We present a Riemann-Hilbert problem formalism for the initial-boundary value problem for the Sasa-Satsuma(SS) equation on the finite interval. Assume that the solution existes, we show that this solution can be expressed in terms of the…

Exactly Solvable and Integrable Systems · Physics 2015-12-22 Jian Xu , Qiaozhen Zhu , Engui Fan

Initial-boundary value problems for integrable nonlinear partial differential equations have become tractable in recent years due to the development of so-called unified transform techniques. The main obstruction to applying these methods…

Analysis of PDEs · Mathematics 2014-12-16 Peter D. Miller , Zhenyun Qin

We present a method to solve initial-boundary value problems for linear and integrable nonlinear differential-difference evolution equations. The method is the discrete version of the one developed by A. S. Fokas to solve initial-boundary…

Exactly Solvable and Integrable Systems · Physics 2009-11-13 Gino Biondini , Guenbo Hwang

The unified transform method (UTM) provides a novel approach to the analysis of initial-boundary value problems for linear as well as for a particular class of nonlinear partial differential equations called integrable. If the latter…

Analysis of PDEs · Mathematics 2021-04-13 B. Deconinck , A. S. Fokas , J. Lenells

The unified transform method is used to analyze the initial-boundary value problem for the coupled derivative nonlinear Schr\"odinger(CDNLS) equations on the half-line. In this paper, we assume that the solution $u(x,t)$ and $v(x,t)$ of…

Exactly Solvable and Integrable Systems · Physics 2018-12-19 Beibei Hu , Tiecheng Xia , Ning Zhang

We show how to solve initial-boundary value problems for integrable nonlinear differential-difference equations on a finite set of integers. The method we employ is the discrete analogue of the unified transform (Fokas method). The…

Exactly Solvable and Integrable Systems · Physics 2018-07-02 Baoqiang Xia

Let $q(x,t)$ satisfy the Dirichlet initial-boundary value problem for the nonlinear Schr\"odinger equation on the finite interval, $0 < x < L$, with $q_{0}(x) = q(x,0)$, $g_{0}(t) = q(0,t)$, $f_{0}(t) = q(L,t)$. Let $g_{1}(t)$ and…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 A. S. Fokas , A. R. Its

We present an approach for analyzing initial-boundary value problems for integrable equations whose Lax pairs involve $3 \times 3$ matrices. Whereas initial value problems for integrable equations can be analyzed by means of the classical…

Exactly Solvable and Integrable Systems · Physics 2015-05-30 Jonatan Lenells

Boundary value problems for integrable nonlinear evolution PDEs formulated on the finite interval can be analyzed by the unified method introduced by one of the authors and used extensively in the literature. The implementation of this…

Analysis of PDEs · Mathematics 2015-05-30 J. Lenells , A. S. Fokas

We employ the Ablowitz-Ladik system as an illustrative example in order to demonstrate how to analyze initial-boundary value problems for integrable nonlinear differential-difference equations via the unified transform (Fokas method). In…

Exactly Solvable and Integrable Systems · Physics 2018-03-26 Baoqiang Xia , A. S. Fokas

We study the local and global wellposedness of the initial-boundary value problem for the biharmonic Schr\"odinger equation on the half-line with inhomogeneous Dirichlet-Neumann boundary data. First, we obtain a representation formula for…

Analysis of PDEs · Mathematics 2019-02-08 Türker Özsarı , Nermin Yolcu

In this paper, we utilize Fokas method to investigate the initial-boundary value problems (IBVPs) of the fourth-order dispersive nonlinear Schr\"{o}dinger (FODNLS) equation on the half-line, which can simulate the nonlinear transmission and…

Exactly Solvable and Integrable Systems · Physics 2021-01-20 Beibei Hu , Ling Zhang , Qinghong Li , Ning Zhang

We consider the initial boundary value problem for the focusing nonlinear Schr\"odinger equation in the quarter plane $x>0,t>0$ in the case of decaying initial data (for $t=0$, as $x\to +\infty$) and the Robin boundary condition at $x=0$.…

Exactly Solvable and Integrable Systems · Physics 2017-02-08 Alexander Its , Dmitry Shepelsky

In this paper we investigate the coupled focusing-defocusing complex short pulse equation, which describe the propagation of ultra-short optical pulses in cubic nonlinear media. Through the unified transform method, the initial-boundary…

Exactly Solvable and Integrable Systems · Physics 2017-12-19 Beibei Hu , Tiecheng Xia , Wen-xiu Ma
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