Physics – Mathematical Physics
Scientific paper
2007-08-15
Proceedings of the Steklov Institute of Mathematics, 2009, 265, 13--29
Physics
Mathematical Physics
20 pages
Scientific paper
We develop an analysis of wavelets and pseudodifferential operators on multidimensional ultrametric spaces which are defined as products of locally compact ultrametric spaces. We introduce bases of wavelets, spaces of generalized functions and Lizorkin generalized functions on multidimensional ultrametric spaces. We also consider some family of pseudodifferential operators on multidimensional ultrametric spaces. The notions of Cauchy problem for ultrametric pseudodifferential equations and of ultrametric characteristics are introduced. A theorem about existence and uniqueness of the solution for the Cauchy problem (the analogue of the Kovalevskaya theorem) is proven.
Albeverio Sergio
Kozyrev S. V.
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