Author:
Gubbiotti Giorgio,Levi Decio,Scimiterna Christian
Abstract
In this note we present some ideas on when Lie symmetries, both point and generalized, can depend on arbitrary functions. We show a few examples, both in partial differential and partial difference equations where this happens. Moreover we show that the infinitesimal generators of generalized symmetries depending on arbitrary functions, both for continuous and discrete equations, effectively play the role of master symmetries.
Publisher
Czech Technical University in Prague - Central Library
Cited by
10 articles.
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