Ermakov's Superintegrable Toy and Nonlocal Symmetries
نویسندگان
چکیده
منابع مشابه
Nonlocal Symmetries and Ghosts
The local theory of symmetries of differential equations has been well-established since the days of Sophus Lie. Generalized, or higher order symmetries can be traced back to the original paper of Noether, [32], but were not exploited until the discovery that they play a critical role in integrable (soliton) partial differential equations, cf. [30, 33, 35]. While the local theory is very well d...
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ژورنال
عنوان ژورنال: Symmetry, Integrability and Geometry: Methods and Applications
سال: 2005
ISSN: 1815-0659
DOI: 10.3842/sigma.2005.018