Article ID Journal Published Year Pages File Type
4669250 Bulletin des Sciences Mathématiques 2010 10 Pages PDF
Abstract

Let K be a complete ultrametric algebraically closed field. We investigate several properties of sequences (an)n∈N in a disk d(0,R−) with regards to bounded analytic functions in that disk: sequences of uniqueness (when f(an)=0∀n∈N implies f=0), identity sequences (when limn→+∞f(an)=0 implies f=0) and analytic boundaries (when lim supn→∞|f(an)|=‖f‖). Particularly, we show that identity sequences and analytic boundary sequences are two equivalent properties. For certain sequences, sequences of uniqueness and identity sequences are two equivalent properties. A connection with Blaschke sequences is made. Most of the properties shown on analytic functions have continuation to meromorphic functions.

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Physical Sciences and Engineering Mathematics Mathematics (General)