Abstract
The paper contains two different topics. The first topic deals with the coefficient problem. It is shown that for a certain type of rational functions (depending on a parameter q) the validity of Robertson's inequalities for n less than or equal to fq − 1 is sufficient to conclude Bieberbach/de Branges' inequalities for all n. In the second topic is studied the “stability of niceness” of Robertson's functional for n = 4.
*E-mail: haakonwa#matstat.unit.no
*E-mail: haakonwa#matstat.unit.no
Notes
*E-mail: haakonwa#matstat.unit.no