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- Breather, Lumps, and Soliton Molecules for the - Dimensional Elliptic Toda Equation

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  • Yuechen Jia
  • Yu Lu
  • Miao Yu
  • Hasi Gegen

Abstract

The - dimensional elliptic Toda equation is a higher dimensional generalization of the Toda lattice and also a discrete version of the Kadomtsev-Petviashvili-1 (KP1) equation. In this paper, we derive the - breather solution in the determinant form for the - dimensional elliptic Toda equation via Bäcklund transformation and nonlinear superposition formulae. The lump solutions of the - dimensional elliptic Toda equation are derived from the breather solutions through the degeneration process. Hybrid solutions composed of two line solitons and one breather/lump are constructed. By introducing the velocity resonance to the - soliton solution, it is found that the - dimensional elliptic Toda equation possesses line soliton molecules, breather-soliton molecules, and breather molecules. Based on the - soliton solution, we also demonstrate the interactions between a soliton/breather-soliton molecule and a lump and the interaction between a soliton molecule and a breather. It is interesting to find that the KP1 equation does not possess a line soliton molecule, but its discrete version—the - dimensional elliptic Toda equation—exhibits line soliton molecules.

Suggested Citation

  • Yuechen Jia & Yu Lu & Miao Yu & Hasi Gegen, 2021. "- Breather, Lumps, and Soliton Molecules for the - Dimensional Elliptic Toda Equation," Advances in Mathematical Physics, Hindawi, vol. 2021, pages 1-18, June.
  • Handle: RePEc:hin:jnlamp:5211451
    DOI: 10.1155/2021/5211451
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