On the internal approach to differential equations 3. Infinitesimal symmetries
نویسندگان
چکیده
منابع مشابه
Internal Symmetries of Differential Equations
Bäcklund’s Theorem, which characterizes contact transformations, is generalized to give an analogous characterization of “internal symmetries” of systems of differential equations. For a wide class of systems of differential equations, every internal symmetry comes from a first order generalized symmetry and, conversely, every first order generalized symmetry satisfying certain explicit contact...
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ژورنال
عنوان ژورنال: Mathematica Slovaca
سال: 2016
ISSN: 0139-9918,1337-2211
DOI: 10.1515/ms-2016-0236