Potential Theory/Complex Analysis
On the behaviour of power series in the absence of Hadamard–Ostrowski gaps
[Sur le comportement des séries entières en lʼabsence de lacunes de Hadamard–Ostrowski]
Comptes Rendus. Mathématique, Tome 351 (2013) no. 7-8, pp. 255-259.

Nous montrons que les sommes partielles (Snf)nN dʼune série entière f de rayon de convergence 1 tendent vers ∞ en capacité sur les ensembles compacts (arbitrairement grands) du complémentaire du disque unité fermé si f ne contient pas de lacunes de Hadamard–Ostrowski. Tenant compte dʼun résultat récent de Gardiner, ceci couvre une grande classe de fonctions f holomorphes sur le disque unité.

We show that the partial sums (Snf)nN of a power series f with radius of convergence one tend to ∞ in capacity on (arbitrarily large) compact subsets of the complement of the closed unit disk, if f does not have so-called Hadamard–Ostrowski gaps. Regarding a recent result of Gardiner, this covers a large class of functions f holomorphic in the unit disk.

Reçu le :
Accepté le :
Publié le :
DOI : 10.1016/j.crma.2013.04.012
Kalmes, Thomas 1 ; Müller, Jürgen 1 ; Nieß, Markus 2

1 University of Trier, FB IV, Mathematics, Universitätsring, Trier, Germany
2 TU Clausthal, Institute of Mathematics, Erzstr. 1, Clausthal-Zellerfeld, Germany
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Kalmes, Thomas; Müller, Jürgen; Nieß, Markus. On the behaviour of power series in the absence of Hadamard–Ostrowski gaps. Comptes Rendus. Mathématique, Tome 351 (2013) no. 7-8, pp. 255-259. doi : 10.1016/j.crma.2013.04.012. http://www.numdam.org/articles/10.1016/j.crma.2013.04.012/

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