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The de Sitter-invariant differential equations and their contraction to Poincaré and Galilei

✍ Scribed by M. de Montigny

Book ID
112904451
Publisher
Springer-Verlag,Italian Physical Society
Year
1993
Weight
522 KB
Volume
108
Category
Article
ISSN
0369-3554

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We completely characterize all nonlinear partial differential equations leaving a given finite-dimensional vector space of analytic functions invariant. Existence of an invariant subspace leads to a reduction of the associated dynamical partial differential equations to a system of ordinary differen