The wave equation in Oblate Spheroidal Coordinates is
(1) |
(2) |
(3) |
(4) |
(5) |
See also Prolate Spheroidal Wave Function
References
Abramowitz, M. and Stegun, C. A. (Eds.). ``Spheroidal Wave Functions.'' Ch. 21 in
Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables, 9th printing.
New York: Dover, pp. 751-759, 1972.