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Circle packing with generalized branching

Research output: Contribution to journalArticle

Original languageEnglish
Pages (from-to)251–276
Number of pages28
JournalJournal of Analysis
Volume24
Issue number2
Early online date8 Dec 2016
DOIs
DateAccepted/In press - 7 Nov 2016
DateE-pub ahead of print - 8 Dec 2016
DatePublished (current) - Dec 2016

Abstract

Attempts to build a discrete theory for rational maps on the sphere via circle packing have foundered on discretization effects in locating branch points. The authors remove this impediment by introducing generalized branch points. A generalized branch point need no longer be attached to an individual circle, but with the help of chaperones and other devices, can be positioned anywhere that the geometry requires. The effects are illustrated in images and videos as we use generalized branching to fix flaws in discrete Ahlfors and Weierstrass functions.

    Research areas

  • Circle packing, Discrete analytic function, Blaschke product, Ahlfors function, Branch point

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  • Full-text PDF (accepted author manuscript)

    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Springer at http://link.springer.com/article/10.1007/s41478-016-0020-7. Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 6 MB, PDF-document

    Licence: CC BY-NC

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