meromorphic function
亚纯函数
Meaning in context
A meromorphic function on a complex domain is holomorphic except at a discrete set of poles, with the identically infinite function excluded here.
复区域上的函数若除去离散的极点集后全纯,则称为亚纯函数;此处约定不包括恒取无穷的函数。
Example
is meromorphic on C and has poles at and .
Usage and distinctions
Poles are allowed, but essential singularities and interior accumulation of poles are not.
Recommended reading in this subject · Preparation & skip guidance
Definition sources
- Michael Taylor — Introduction to Complex Analysis§11, meromorphic definition after Proposition 11.3, printed p.127 · Checked 2026-10-14
Translation sources
- 肇庆学院 —《复变函数》课程教学大纲第五章,学习要求8:整函数与亚纯函数,printed p.9 · Checked 2026-10-14