A reversed Lax-pair construction using intertwining on the M-operator produces families of quasi-isospectral higher-order Hamiltonians from KdV-type equations.
On a proposition relative to linear equations
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Quasi-isospectral higher-order Hamiltonians via a reversed Lax pair construction
A reversed Lax-pair construction using intertwining on the M-operator produces families of quasi-isospectral higher-order Hamiltonians from KdV-type equations.