V2EX multilinear form

Multilinear Form

释义 Definition

多重线性形式:在数学(线性代数/多重线性代数)中,指一个函数 \(F\),它把多个向量空间中的向量作为输入并输出一个标量(通常在 \(\mathbb{R}\) 或 \(\mathbb{C}\) 中),且对每一个输入变量分别都是线性的。常见例子包括行列式、张量诱导的多线性映射等。(也常简称为 multilinear form;在不同语境下与“张量/多线性映射”密切相关。)

例句 Examples

A determinant is a multilinear form in the columns of a matrix.
行列式在矩阵的各列向量上是一个多重线性形式。

In differential geometry, a \(k\)-form can be viewed as an alternating multilinear form on tangent vectors.
在微分几何中,\(k\) 阶微分形式可以看作作用在切向量上的交替(反对称)多重线性形式。

发音 Pronunciation (IPA)

/mltilnir frm/

词源 Etymology

由 **multi-**(“多、多个”)+ linear(“线性的”)+ form(“形式/表达式”)构成。该术语在1920世纪线性代数与张量理论发展中逐渐固定,用来强调“对每个变量都保持线性”的性质。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Multilinear Algebra(Werner Greub)
  • Linear Algebra(Kenneth Hoffman & Ray Kunze)
  • Calculus on Manifolds(Michael Spivak)
  • Introduction to Smooth Manifolds(John M. Lee)
  • Algebra(Nicolas Bourbaki,相关章节讨论多线性结构与张量观点)
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