辐角原理
- 网络Argument principle;principle of the argument
辐角原理-
在Schwarz引理方面，基于辐角原理和同伦理论，作者将经典的Schwarz引理从单位圆盘上的解析函数推广到了具有k阶零点的亚纯函数。
With regard to Schwarz lemma , Basing on the argument principle and homotopy theory , the author extend the classical Schwarz lemma from analytic function to meromorphic function whose number of the zeros are k th , and these functions are defined on the unit disk .
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直接从复分析中的辐角原理出发，推导出分数阶线性定常系统2个有效的稳定性判据：分数阶系统奈奎斯特判据和分数阶系统对数频率判据。
Starting directly from the argument principle of complex analysis , two efficient stability criteria are deduced for fractional order linear time-invariant systems : Nyquist criterion of fractional systems and logarithmic-frequency criterion of fractional systems .