On Beurling's boundary value problem in circle packing
On Beurling's boundary value problem in circle packing
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关于圆堆积中的 Beurling 边值问题
DOI:
10.1080/17476933.2011.598931
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发表时间:
2012
影响因子:
0.9
通讯作者:
E. Wegert
中科院分区:
文献类型:
--
作者:
D. Kraus;O. Roth;E. Wegert
We investigate a discrete counterpart of Beurling's boundary value problem for analytic functions in the framework of circle packing. In the case of discrete analytic functions modelled on arbitrary combinatorically closed disks existence of solutions is shown under rather general assumptions. As in the nondiscrete case finitely many branch circles can be prescribed, so the solutions include locally univalent as well as branched packings. The proof of existence rests on an application of Brouwer's fixed point theorem and a global parameterization of the differentiable manifold of circle packings. We also present some first results on the uniqueness of solutions. In the last two sections we propose an algorithm for the numerical solution of the problem, which is based on an embedded Newton method, and report on some test calculations.
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