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Computer classification of the integrable coupled KdV-like systems with unit main matrix. (English) Zbl 0771.35067

Summary: The classification of 2-component systems of equations for the form \[ u_ t^ i=u_{xxx}^ i+c_{ij} u^ i u_ x^ j\qquad (i,j=1,2) \] which possess higher symmetries is given. A new class of such integrable KdV-like systems is obtained. All the computations have been done using the REDUCE computer algebra system.

MSC:

35Q53 KdV equations (Korteweg-de Vries equations)
68W30 Symbolic computation and algebraic computation

Software:

REDUCE
Full Text: DOI