Numerical Solution of the Beltrami Equation Via a Purely Linear System
Numerical Solution of the Beltrami Equation Via a Purely Linear System
复制标题
贝尔特拉米方程的纯线性系统数值解
DOI:
10.1007/s00365-016-9334-6
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发表时间:
2014
影响因子:
2.7
通讯作者:
Hirokazu Shimauchi
中科院分区:
文献类型:
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作者:
R. M. Porter;Hirokazu Shimauchi
An effective algorithm is presented for solving the Beltrami equation $$\partial f / \partial \overline{z } =\mu \,\partial f/\partial z$$∂f/∂z¯=μ∂f/∂z in a planar disk. The disk is triangulated in a simple way, and f is approximated by piecewise linear mappings; the images of the vertices of the triangles are defined by an overdetermined system of linear equations. (Certain apparently nonlinear conditions on the boundary are eliminated by means of a symmetry construction.) The linear system is sparse, and its solution is obtained by standard least-squares, so the algorithm involves no evaluation of singular integrals nor any iterative procedure for obtaining a single approximation of f. Numerical examples are provided, including a deformation in a Teichmüller space of a Fuchsian group.
DOI:
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发表时间:
2014
期刊:
影响因子:
--
作者:
L. Lui;H. Shiga and Z. Sun;H. Shiga;H. Shiga;H. Shiga;H. Shiga;H. Shiga;H. Shiga;H. Shiga;H. Shiga
通讯作者:
H. Shiga
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Ikehata;M and Ohe;T;松本久義
通讯作者:
松本久義