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Lax Pairs for Partial Differential Equations
https://doi.org/10.1142/9789814282215_0015Cited by:0 (Source: Crossref)
Abstract: 

where L is the linear differential operator of the spectral problem, M is the linear differential operator of an associated time-evolution equation and λ is a parameter. The differential operators L and M are called a Lax pair…
Let L and M be two linear differential operators. Assume that Lv = λv

