Article ID Journal Published Year Pages File Type
4613992 Journal of Mathematical Analysis and Applications 2017 13 Pages PDF
Abstract

We provide a new proof of a theorem of Fujimura characterizing Blaschke products of degree-4 that are compositions of two degree-2 Blaschke products, connect this result to the numerical ranges of certain operators, and characterize Poncelet ellipses that are inscribed in quadrilaterals geometrically and algebraically.

Related Topics
Physical Sciences and Engineering Mathematics Analysis
Authors
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