Symmetry in Integrable Systems: Topics and Advances (Second Edition)

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Mathematics".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 592

Special Issue Editor


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Guest Editor
Department of Mathematics, Zhejiang University of Technology, Hangzhou 310014, China
Interests: integrable systems; soliton theory; equations of mathematical physics
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Special Issue Information

Dear Colleagues,

Symmetries play a paramount important role in mathematics as well as in physics. Similarity solutions or invariant solutions of a physical problem can be constructed using the Lie group theory. The relationship between symmetries and conservation laws generates the Noether theorem. The related applications of symmetries are to determine higher-order and non-local symmetries, conservation laws, nonlocal conservation laws and specific solutions from reductions. The preceding volume would like to offer an overview of the comprehensive treatments of the Lie groups of transformations, the discovery and use of symmetries to construct solutions, the conservation laws and phenomenological applications thereof.

Potential topics include but are not limited to the following:

  • Symmetries;
  • Conservation laws;
  • Solitons;
  • Integrable systems;
  • Breathers;
  • Rogue waves;
  • Hirota bilinear method;
  • Darboux transformation;
  • Other miscellaneous applications of nonlinear integrable systems.

Prof. Dr. Bo Ren
Guest Editor

Manuscript Submission Information

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Keywords

  • symmetries
  • conservation laws
  • solitons
  • integrable systems
  • breathers
  • rogue waves
  • hirota bilinear method
  • darboux transformation
  • other miscellaneous applications of nonlinear integrable systems

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Published Papers (1 paper)

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Research

14 pages, 4755 KB  
Article
New Soliton-Type Solutions of the (2 + 1)-Dimensional Variable-Coefficient Boussinesq Equation
by Jing Li and Zhiyi Cao
Symmetry 2026, 18(4), 680; https://doi.org/10.3390/sym18040680 - 20 Apr 2026
Viewed by 269
Abstract
The (2+1)-dimensional Boussinesq equation plays an important role in mathematical physics. In this paper, we investigate some exact solutions of the (2+1)-dimensional variable-coefficient Boussinesq equation. Firstly, the Painlevé analysis is carried out, and [...] Read more.
The (2+1)-dimensional Boussinesq equation plays an important role in mathematical physics. In this paper, we investigate some exact solutions of the (2+1)-dimensional variable-coefficient Boussinesq equation. Firstly, the Painlevé analysis is carried out, and an auto-Bäcklund transformation is constructed by means of a truncated Painlevé expansion combined with symbolic computation. Then, a class of new soliton-type solutions is derived. By selecting appropriate parameter values, detailed simulations are presented to illustrate the dynamical behavior of water wave propagation. Finally, the Lie point symmetries of the equation are studied, and several similarity reductions are derived by solving the corresponding characteristic equations. Full article
(This article belongs to the Special Issue Symmetry in Integrable Systems: Topics and Advances (Second Edition))
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