The use of factors to discover potential systems or linearizations

New classes of symmetries for partial differential equations

George W. Bluman, Gregory J. Reid, Sukeyuki Kumei · Journal of Mathematical Physics · 1988 · 302 citations

Natural Sciences, Mathematics, Physics +17

Nonlocal trends in the geometry of differential equations: Symmetries, conservation laws, and B�cklund transformations

I. S. Krasil’shchik, A. M. Vinogradov · Acta Applicandae Mathematicae · 1989 · 208 citations

Natural Sciences, Mathematics, Physics +17

The computer calculation of Lie point symmetries of large systems of differential equations

Bernard Champagne, Willy Hereman, P. Winternitz · Computer Physics Communications · 1991 · 169 citations

Natural Sciences, Computer Science, Mathematics +14

Nonlocal symmetries and the theory of coverings: An addendum to A. M. vinogradov's ?local symmetries and conservation laws?

I. S. Krasil’shchik, A. M. Vinogradov · Acta Applicandae Mathematicae · 1984 · 159 citations

Natural Sciences, Mathematics, Physics +16

When Nonlinear Differential Equations are Equivalent to Linear Differential Equations

Sukeyuki Kumei, George W. Bluman · SIAM Journal on Applied Mathematics · 1982 · 136 citations

Natural Sciences, Mathematics, Complex Systems +14