rationalmatrices collects classes, methods and tools for creating and manipulating rational matrices, i.e. matrices whose entries are rational functions. It provides the fundamentals for the R package ...

We present some relations that allow the efficient approximate inversion of linear differential operators with rational function coefficients. We employ expansions in terms of a large class of ...

Extending a result of Khavinson and $\acute{S}wi\cedil{a}tek$ (2003) we show that the rational harmonic function $\overline {r(z)} - z$, where r(z) is a rational function of degree n > 1, has no more ...

Abstract: This is the second in a series of papers describing the ALPAK system for nonnumerical algebra on a digital computer. The first paper, Ref. 1, is concerned with polynomials in several ...

Abstract: In this paper, we present a rational function method (RFM) in order to measure complex dielectric parameters (CDP) with an open ended coaxial probe. The scattered field data is measured on ...