摘要
设f(z)在某域内亚纯且在此域内恰有M个极点。xo-曩qcBa’得到了f(z)的极点与其(L,M)型(α,β)-Padé逼近极点之间的关系。本文拓广了这一结果进一步研究了f(z)的(L,M+μ)(μ>0)型(α,β)-Padé逼近极点的浙近性态。
Suppose that f(z) is mcromorphic and has precisely M poles in certain domain. KoBaicsa found out a relation between the poles of f(z) and those of (α,β)-Pade approximants of type (L,M)to f(z): In this paper is given a result which further studies the behavior of the poles of (α,β)-pade approximancs of type (L,M+μ) (μ≥0) and which can be regarded as an extension to that got by .
出处
《工程数学学报》
CSCD
1992年第1期15-21,共7页
Chinese Journal of Engineering Mathematics
