Wiener-Hopf technique

Wiener-Hopf technique

[¦vēn·ər ′hȯpf ‚tek‚nēk]
(mathematics)
A method used in solving certain integral equations, boundary-value problems, and other problems, which involves writing a function that is holomorphic in a vertical strip of the complex z plane as the product of two functions, one of which is holomorphic both in the strip and everywhere to the right of the strip, while the other is holomorphic in the strip and everywhere to the left of the strip.
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It contains all the significant topics of EM wave technology, from the finite element method, boundary element method, point-matching method, mode matching method, the spatial network method, the equivalent source method, the geometrical theory of diffraction, the Wiener-Hopf technique, asymptotic expansion techniques and beam propagation method to spectral domain method.