Cauchy independent measures and super-additivity of analytic capacity

preprint2012arXivOpen access

Abstract

We show that, given a family of discs centered at a nice curve, the analytic capacities of arbitrary subsets of these discs add up. However we need that the discs in question would be slightly separated, and it is not clear whether the separation condition is essential or not. We apply this result to study the independence of Cauchy integral operators.

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