V2EX meromorphic

Meromorphic

Definition / 释义

meromorphic(形容词):(复分析中)亚纯的;指在某个区域内除了孤立极点之外处处解析(可理解为“像分式那样:允许出现极点的解析函数”)。(也有更广义用法,视具体数学语境而定。)

Pronunciation / 发音

/mrmrfk/

Examples / 例句

A meromorphic function can have poles but no essential singularities.
亚纯函数可以有极点,但没有本性奇点。

On a compact Riemann surface, every non-constant meromorphic function must have as many poles as zeros when counted with multiplicity.
在紧黎曼曲面上,每个非常数的亚纯函数在按重数计数时,极点与零点的“总量”必须相匹配。

Etymology / 词源

词由 mero-(源自希腊语,意为“部分的”)+ -morphic(“形态/形式的”,与 morph “形状”同源)构成。含义可理解为“部分像解析函数那样良好”,因为它在大部分点解析,但允许在少数孤立点出现极点。

Related Words / 相关词

Literary Works / 文学与著作示例

  • Complex Analysis(Lars Ahlfors):在讨论解析函数、奇点分类与留数时频繁出现 meromorphic
  • Functions of One Complex Variable I(John B. Conway):用于介绍亚纯函数、极点与Laurent展开等核心概念。
  • Complex Analysis(Elias M. Stein & Rami Shakarchi):在复变函数理论框架中系统使用 meromorphic
  • A Course of Modern Analysis(E. T. Whittaker & G. N. Watson):在涉及Gamma函数、椭圆函数等内容时常用到“meromorphic”。
  • The Theory of Functions(E. C. Titchmarsh):在函数理论与奇点/解析延拓相关章节中出现。
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