V2EX multilinear algebra

Multilinear Algebra

定义 Definition

多重线性代数:研究“对多个变量分别都是线性的函数与结构”的代数分支。它常围绕多线性映射(multilinear maps)、张量(tensors)、外积/楔积(exterior/wedge product)等概念,用来描述向量空间之间更高阶的线性关系。(在更广泛语境中也会与张量代数、外代数等密切相连。)

发音 Pronunciation (IPA)

/mltilnir ldbr/

例句 Examples

Multilinear algebra helps us understand tensors.
多重线性代数帮助我们理解张量。

In differential geometry and physics, multilinear algebra provides the language for expressing bilinear forms, determinants, and tensor contractions in a coordinate-free way.
在微分几何和物理中,多重线性代数提供了一种语言,用不依赖坐标的方式表达双线性形式、行列式以及张量缩并。

词源 Etymology

multilinearmulti-(“多、多个”)+ linear(“线性的”)构成,字面意思是“多变量分别线性”。agebra 源自阿拉伯语 al-jabr,经中世纪拉丁语进入英语,原义与“复原、整合”相关,后来指代更广义的代数学科。合在一起,multilinear algebra 即“研究多线性对象的代数”。

相关词 Related Words

文学与经典著作中的出现 Literary Works

  • Linear Algebra Done Right(Sheldon Axler):在讨论外代数、行列式与相关结构时常涉及多线性观点与语言。
  • Algebra(Serge Lang):包含与张量、外代数等相关内容,常以多线性框架组织若干章节。
  • Tensor Analysis on Manifolds(Richard L. Bishop & Samuel I. Goldberg):以张量与多线性映射为核心工具,体现多重线性代数在几何中的用法。
  • Principles of Mathematical Analysis(Walter Rudin):在多元微积分与线性/多线性结构的衔接处,会使用多线性思想来表达高阶对象(如微分的多线性性质)。
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