Title :
Comparison between two asymptotic methods
Author :
Rojas, Roberto G.
Author_Institution :
Ohio State University, Columbus, OH, USA
fDate :
12/1/1987 12:00:00 AM
Abstract :
Two complete asymptotic expansions of an integral with many simple pole singularities and a first-order, isolated, saddle point evaluated by two different methods are compared. It is shown that both expansions are exactly the same (term by term) inside and outside the transition regions.
Keywords :
Approximation methods; Integral equations; Acoustic scattering; Antennas and propagation; Coatings; Dielectrics; Eigenvalues and eigenfunctions; Electromagnetic scattering; Geometrical optics; Optical propagation; Optical scattering; Optical surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1987.1144045
