... interpolation¹

This research has been established due to the project Tournesol, by the embassy of France in Brussels. It is the result of a cooperation between the MaSe team of M. Van Barel and the Galaad group of B. Mourrain. This research was partially supported by the K.U.Leuven (Bijzonder Onderzoeksfonds), project ``SLAP: Structured Linear Algebra Package,'' grant #OT/00/16 and partially by the Fund for Scientific Research-Flanders (FWO-V), project ``SMA: Structured Matrices and their Applications'' grant #G.0078.01. The work of the authors is also supported by the Belgian Programme on Interuniversity Poles of Attraction, initiated by the Belgian State, Prime Minister's Office for Science, Technology and Culture. The scientific responsibility rests with the authors.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... Vandebril²

E-Mail: raf.vandebril-at-cs.kuleuven.ac.be

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... Barel³

E-Mail: marc.vanbarel-at-cs.kuleuven.ac.be

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... Ruatta⁴

E-Mail: olivier.ruatta-at-sophia.inria.fr

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... Mourrain⁵

E-Mail: bernard.mourrain-at-sophia.inria.fr

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.