A 4 × 4 Matrix Spectral Problem Involving Four Potentials and Its Combined Integrable Hierarchy

This paper introduces a specific matrix spectral problem involving four potentials and derives an associated soliton hierarchy using the zero-curvature formulation. The bi-Hamiltonian formulation is derived via the trace identity, thereby establishing the hierarchy’s Liouville integrability. This is...

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Autores principales:	Wen-Xiu Ma, Ya-Dong Zhong
Formato:	Artigo
Lenguaje:	Inglês
Publicado:	MDPI AG 2025-08-01
Colección:	Axioms
Materias:	Lax pair soliton hierarchy NLS equations mKdV equations
Acceso en línea:	https://www.mdpi.com/2075-1680/14/8/594
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