Hyperbolic Formulas in Elliptic Cauchy Problems
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🧮 math-ph
math.MP
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cauchyproblemdomainequationformulashyperbolicapproachboundary
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We study the Cauchy problem for the Laplace equation in a cylindrical domain with data on a part of it's boundary which is a cross-section of the cylinder. On reducing the problem to the Cauchy problem for the wave equation in a complex domain and using hyperbolic theory we obtain explicit formulas for the solution, thus developing the classical approach of Hans Lewy (1927).
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