Mathematical Journal of Ibaraki University
Online ISSN : 1883-4353
Print ISSN : 1343-3636
Liouville type theorem on conformal mapping for indefinite metrics associate with ultra-hyperbolic equations
Katsunori Shimomura
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2016 Volume 48 Pages 1-18

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Abstract

In [4], we proved that any transformation which preserves solutions of the wave equation is a similarity, an inversion, or a Bateman transformation. This paper gives a generalization of the results to ultra-hyperbolic type equations.

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© 2016 Department of Mathematics, Faculty of Science, Ibaraki University
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