V2EX multilinear

Multilinear

定义 Definition

multilinear(多线性的):在数学中,指一个函数/映射对每一个自变量分别都是线性的(把其他变量固定时,对该变量满足线性性质)。常见于多重线性代数张量多线性形式等语境。
(也偶尔可指“多行书写的”,但更常见用法是数学含义。)

发音 Pronunciation

/mltilnir/

例句 Examples

A determinant is a multilinear function of the rows of a matrix.
行列式是矩阵各行的一个多线性函数。

In multilinear algebra, tensors generalize vectors by allowing functions that are linear in each argument separately.
在多线性代数中,张量通过允许对每个自变量分别线性,从而把向量的概念推广开来。

词源 Etymology

由 **multi-**(“多、多个”)+ linear(“线性的”)构成。该词在数学语境中用来强调“不是对所有变量一起线性”,而是“对每个变量分别线性”的性质,因此形成 multilinear 这一术语。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Multilinear Algebra(Werner Greub):多线性映射与张量的经典教材中频繁出现该术语。
  • Linear Algebra Done Right(Sheldon Axler):在相关章节讨论张量/多线性观点时会涉及 multilinear
  • Algebra(Serge Lang):在张量积与多线性映射的叙述中使用 multilinear
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