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UNIFIED DERIVATION OF THE TRANSLATIONAL ADDITION THEOREMS FOR THE SPHERICAL SCALAR AND VECTOR WAVE FUNCTIONS
Author(s) -
Tommi Dufva,
Jukka Sarvas,
Johan C.-E. Stén
Publication year - 2008
Publication title -
progress in electromagnetics research b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.208
H-Index - 47
ISSN - 1937-6472
DOI - 10.2528/pierb07121203
Subject(s) - scalar (mathematics) , vector valued function , physics , classical mechanics , mathematics , mathematical analysis , geometry
—The translational addition theorems for the spherical scalar and vector wave functions are derived in a novel, unified way based on the simple and well-known concepts of the radiation and incoming wave patterns.This approach makes the derivation simpler and more transparent compared,to the previous approaches.As a result, we also obtain alternative and partly simpler expressions for the translation coefficients in the vector case.

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