The objective of this paper is to present a simple framework for the derivation and analysis of orthogonal IIR transfer functions, which are directly related to orthogonal rational functions.

A set of soundings from a beach profile surveyed during 1980 and part of 1981-1982 in the locality of Pinamar, Province of Buenos Aires, Argentina, has been statistically analysed by means of ...

Its “characters”, the orthogonal functions, the spherical Bessel functions, the Legendre polynomials, and so on, behave in such a variety of ways they make even the Sopranos look like wooden ...