Properties And Examples Of Faber--walsh Polynomials
Sète Olivier, Liesen Jörg. Computational Methods and Function Theory Volume 2015
The Faber–Walsh polynomials are a direct generalization of the (classical) Faber polynomials from simply connected sets to sets with several simply connected components. In this paper we derive new properties of the Faber–Walsh polynomials, where we focus on results of interest in numerical linear algebra, and on the relation between the Faber–Walsh polynomials and the classical Faber and Chebyshev polynomials. Moreover, we present examples of Faber–Walsh polynomials for two real intervals as well as some non-real sets consisting of several simply connected components.
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