Abstract
The theory of coverings over differential equations is exposed which is an adequate language for describing various nonlocal phenomena: nonlocal symmetries and conservation laws, Bäcklund transformations, prolongation structures, etc. A notion of a nonlocal cobweb is introduced which seems quite useful for dealing with nonlocal objects.
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© 1989 Kluwer Academic Publishers
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Krasil’shchik, I.S., Vinogradov, A.M. (1989). Nonlocal Trends in the Geometry of Differential Equations: Symmetries, Conservation Laws, and Bäcklund Transformations. In: Vinogradov, A.M. (eds) Symmetries of Partial Differential Equations. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1948-8_8
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DOI: https://doi.org/10.1007/978-94-009-1948-8_8
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