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solv-int1998
Binary Nonlinearization of AKNS Spectral Problem under Higher-Order Symmetry Constraints
Yishen Li, Wen-Xiu Ma
Binary nonlinearization of AKNS spectral problem is extended to the cases of higher-order symmetry constraints. The Hamiltonian structures, Lax representations, -matrices and in…
solv-int1998
An Approach to Master Symmetries of Lattice Equations
Benno Fuchssteiner, Wen-Xiu Ma
An approach to master symmetries of lattice equations is proposed by the use of discrete zero curvature equation. Its key is to generate non-isospectral flows from the discrete spe…