Nonlinear action of Lie groups and super
β
P. Winternitz
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Article
π
1982
π
Elsevier Science
π
English
β 544 KB
Recently obtained results on superposition principles for systems of ordinary nonlinear equations are reviewed. In particular the general solution of the matrix Riccati equation is expressed in terms of five particular solutions. The study of superposition laws is related to the problem of Backlund