V2EX hankel

Hankel

释义 Definition

Hankel(汉克尔):在数学与工程中常用来指以德国数学家 Hermann Hankel 命名的一类对象,最常见的是 Hankel 矩阵(汉克尔矩阵)(沿“反对角线”元素相同),以及 Hankel 函数 / Hankel 变换 等。(该词多作为专有名词使用。)

发音 Pronunciation

/hkl/

例句 Examples

A Hankel matrix has constant values along its anti-diagonals.
汉克尔矩阵的反对角线元素保持不变。

In signal processing, Hankel matrices are often built from time-series data to estimate system order via subspace methods.
在信号处理中,人们常把时间序列数据构造成汉克尔矩阵,用子空间方法估计系统阶数。

词源 Etymology

Hankel 来自19世纪德国数学家 Hermann Hankel 的姓氏。许多以他名字命名的概念(如 Hankel 矩阵、Hankel 函数)常见于线性代数、特殊函数与物理数学方法等领域。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Handbook of Mathematical Functions(Abramowitz & Stegun):涉及 Hankel functions(汉克尔函数) 等特殊函数内容。
  • Tables of Integral Transforms(Erdélyi 等):在积分变换与特殊函数章节中常出现 Hankel 相关条目。
  • Methods of Theoretical Physics(Morse & Feshbach):物理数学方法中会讨论与 Bessel/Hankel 函数相关的展开与应用。
  • Mathematical Methods for Physicists(Arfken, Weber 等):在波动方程、圆柱坐标解与特殊函数部分常提及 Hankel 函数。
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