We give a geometrical interpretation of the notion of mu-prolongations of vector fields and of the related concept of mu-symmetry for partial differential equations (extending to PDEs the notion of lambda-symmetry for ODEs). We give in particular a result concerning the relationship between mu-symmetries and standard exact symmetries. The notion is also extended to the case of conditional and partial symmetries, and we analyse the relation between local mu-symmetries and nonlocal standard symmetries.
|Autori interni:||CICOGNA, GIAMPAOLO|
|Autori:||Cicogna G; Gaeta G; Morando P|
|Titolo:||On the relation between standard and mu-symmetries for PDEs|
|Anno del prodotto:||2004|
|Digital Object Identifier (DOI):||10.1088/0305-4470/37/40/010|
|Appare nelle tipologie:||1.1 Articolo in rivista|