2025/09/30 by Bellavita, Carlo, Nicolau, Artur, Stylogiannis, Georgios
#30H20 #30H50 #47G10 #Classical Analysis and ODEs (math.CA) #Complex Variables (math.CV) #FOS: Mathematics #Primary: 30H35 #Secondary: 30H10
paper · doi:10.48550/arxiv.2509.26338
Given a finite positive Borel measure μ in the open unit disc of the complex plane, we construct a bounded outer function E whose boundary values have vanishing mean oscillation such that |E| μ is a vanishing Carleson measure. As an application it is shown that given any function in a Hardy space, there exists a bounded analytic function in the unit disc whose boundary values have vanishing mean oscillation, with the same critical points and multiplicities.