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arxiv: math/0510403 · v1 · submitted 2005-10-19 · 🧮 math.CA · math.CV

A null series with small anti-analytic part

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keywords seriesalmostanti-analyticbelongcircleconsequenceconvergenteverywhere
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We show that it is possible for a square integrable function on the circle, which is a sum of an almost everywhere convergent series of exponentials with positive frequencies, to not belong to the Hardy space. A consequence in the uniqueness theory is obtained.

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