Quadrature domains, their properties, and relations with Nevanlinna domains

Date(s) : 23/01/2017
10 h 30 min - 11 h 30 min

A bounded domain G ⊂ ℂ is said to be a quadrature domain (or, more precisely, quadrature domain in the wide sense), if there exists a distribution T with support in G, such that for any holomorphic integrable in G function f one has ∫ Gf dA = T(f), where dA stands for the area measure. If the support of T is a finite set, then G is said to be a classical quadrature domain. It turns out that the concept of a quadrature domain has (via the concept of a Schwarz function) interesting relations with the concept of Nevanlinna and locally Nevanlinna domains (in the class of simply connected domains). In the talk it is planned to discuss descriptions of simply connected Nevanlinna and quadrature domains in terms of conformal and univalent harmonic mappings.

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