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arXiv:1204.6064 [math.AP]AbstractReferencesReviewsResources

Eigenfunction expansions for a fundamental solution of Laplace's equation on $\R^3$ in parabolic and elliptic cylinder coordinates

Howard S. Cohl, Hans Volkmer

Published 2012-04-26Version 1

A fundamental solution of Laplace's equation in three dimensions is expanded in harmonic functions that are separated in parabolic or elliptic cylinder coordinates. There are two expansions in each case which reduce to expansions of the Bessel functions $J_0(kr)$ or $K_0(kr)$, $r^2=(x-x_0)^2+(y-y_0)^2$, in parabolic and elliptic cylinder harmonics. Advantage is taken of the fact that $K_0(kr)$ is a fundamental solution and $J_0(kr)$ is the Riemann function of partial differential equations on the Euclidean plane.

Categories: math.AP, math-ph, math.CA, math.MP
Subjects: 35A08, 35J05, 42C15, 33E10, 33C15
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