An Explicit Formula for the Discrete Power Function Associated with Circle Patterns of Schramm Type
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- Ando Hisashi
- Kyushu University
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- Hay Mike
- Roma Tre University
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- Kajiwara Kenji
- Kyushu University
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- Masuda Tetsu
- Aoyama Gakuin University
Abstract
We present an explicit formula for the discrete power function introduced by Bobenko, which is expressed in terms of the hypergeometric τ functions for the sixth Painlevé equation. The original definition of the discrete power function imposes strict conditions on the domain and the value of the exponent. However, we show that one can extend the value of the exponent to arbitrary complex numbers except even integers and the domain to a discrete analogue of the Riemann surface. Moreover, we show that the discrete power function is an immersion when the real part of the exponent is equal to one.
Journal
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- Funkcialaj Ekvacioj
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Funkcialaj Ekvacioj 57 (1), 1-41, 2014
Division of Functional Equations, The Mathematical Society of Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390282680088448128
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- NII Article ID
- 130003391675
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- ISSN
- 05328721
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- Text Lang
- en
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed