Coman conjecture for the bidisc

Abstract

In the paper we show the equality between the Lempert function and the Green function with two poles with equal weights in the bidisc thus giving the positive answer to a conjecture of Coman in the simplest unknown case. Actually, a slightly more general equality is proven which in some sense is natural when studied from the point of view of the Nevanlinna-Pick problem in the bidisc.

References in corpus (1)

• Spectral Nevanlinna-Pick problem and weak extremals in the symmetrized bidisc

Cited by in corpus (1)

• Three-point Nevanlinna Pick problem in the polydisc