V2EX algebraic curve

Algebraic Curve

Definition / 释义

代数曲线:指在(通常是二维平面或射影平面中)由一个或多个多项式方程的零点集合所定义的曲线。最常见的是形如 \(f(x,y)=0\) 的曲线(例如圆、椭圆、抛物线、某些更复杂的曲线)。在更高层次的数学中,代数曲线也常与代数几何黎曼曲面等概念相联系。

Pronunciation / 发音

/ldbrek kv/

Examples / 例句

An algebraic curve can be defined by an equation like \(x^2 + y^2 = 1\).
代数曲线可以由像 \(x^2 + y^2 = 1\) 这样的方程来定义。

The study of singularities on an algebraic curve reveals deep connections between geometry and polynomial equations.
研究代数曲线上的奇点,能揭示几何与多项式方程之间的深层联系。

Etymology / 词源

algebraic 来自 algebra(代数),其词源可追溯到阿拉伯语 al-jabr(“补合、复原”之意),经由中世纪拉丁语进入欧洲语言;后缀 -ic 表示“……的”。curve 源自拉丁语 curvus(“弯曲的”)。合起来 algebraic curve 字面意思就是“由代数(方程)刻画的曲线”。

Related Words / 相关词

Literary Works / 文学作品举例

  • William Fulton, Algebraic Curves: An Introduction to Algebraic Geometry(系统介绍代数曲线的经典教材)
  • Robin Hartshorne, Algebraic Geometry(代数几何权威教材,代数曲线是核心对象之一)
  • Phillip Griffiths & Joseph Harris, Principles of Algebraic Geometry(讨论复代数曲线与几何结构)
  • David Hilbert & S. Cohn-Vossen, Geometry and the Imagination(以更通俗的方式触及曲线与几何思想)
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