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A Dressing Method in Mathematical PhysicsDressing via local Riemann–Hilbert problem

A Dressing Method in Mathematical Physics: Dressing via local Riemann–Hilbert problem Beginning with this chapter, we proceed to a description of the second (mostly analytic) aspect of the dressing method. In this chapter we will show how to dress a seed solution of a (1+1)-dimensional nonlinear equation making use of the local Riemann–Hilbert (RH) problem. First we formulate in Sect. 8.1 a general approach to the RH problem based dressing method [354] in terms of the Lax representation associated with a given nonlinear equation. Then in the subsequent sections we will illustrate with examples of specific nonlinear equations the power of the RH problem method. Throughout this chapter we stress two basic facts concerning the applicability of the RH problem to solve nonlinear equations: (1) the RH problem naturally arises in the context of non- linear equations and (2) this approach is substantially universal. In Sect. 8.2 we concretize the main ideas by means of the classic example of the nonlinear Schrod ¨ inger (NLS) equation. Sections 8.3 and 8.4 are devoted to mathemat- ically more complicated equations: the modified NLS (MNLS) equation and the Ablowitz–Ladik (AL) equation. These two examples are particularly in- teresting from the point of view of the RH problem. Indeed, the reader will see that http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A Dressing Method in Mathematical PhysicsDressing via local Riemann–Hilbert problem

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Publisher
Springer Netherlands
Copyright
© Springer 2007
ISBN
978-1-4020-6138-7
Pages
225 –275
DOI
10.1007/1-4020-6140-4_8
Publisher site
See Chapter on Publisher Site

Abstract

Beginning with this chapter, we proceed to a description of the second (mostly analytic) aspect of the dressing method. In this chapter we will show how to dress a seed solution of a (1+1)-dimensional nonlinear equation making use of the local Riemann–Hilbert (RH) problem. First we formulate in Sect. 8.1 a general approach to the RH problem based dressing method [354] in terms of the Lax representation associated with a given nonlinear equation. Then in the subsequent sections we will illustrate with examples of specific nonlinear equations the power of the RH problem method. Throughout this chapter we stress two basic facts concerning the applicability of the RH problem to solve nonlinear equations: (1) the RH problem naturally arises in the context of non- linear equations and (2) this approach is substantially universal. In Sect. 8.2 we concretize the main ideas by means of the classic example of the nonlinear Schrod ¨ inger (NLS) equation. Sections 8.3 and 8.4 are devoted to mathemat- ically more complicated equations: the modified NLS (MNLS) equation and the Ablowitz–Ladik (AL) equation. These two examples are particularly in- teresting from the point of view of the RH problem. Indeed, the reader will see that

Published: Jan 1, 2007

Keywords: Soliton Solution; Spectral Problem; Homoclinic Orbit; Hilbert Problem; Homoclinic Solution

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