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The Analytic Continuation of the Riemannliouville Integral in the Hyperbolic Case

Published online by Cambridge University Press:  20 November 2018

Marcel Riesz*
Affiliation:
University of Lund, University of Maryland
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In 1949 I published in the Acta Mathematica (vol. 81) a rather long paper: “L'intégrale de Riemann-Liouville et le problème de Cauchy.” This work will be quoted in the sequel as Acta paper. Only minor local references to this paper will be made here, and knowledge of it is not required for the reading of the present article. The notations used here are slightly different from those used in my former paper.

In the Acta paper I introduce multiple integrals and of the Riemann- Liouville type depending on a parameter α and converging for sufficiently large values of α. I give the solution of the Cauchy problem for the wave equation in a unique formula, the same for space-time of odd or even dimensions, implying an analytic continuation with respect to the parameter α.

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1961