V2EX wronskian

Wronskian

释义 Definition

Wronskian(朗斯基行列式):在微分方程与线性代数中,用来判断一组函数是否线性无关的一个行列式(由这些函数及其导数组成)。常用于线性常微分方程理论中。(在某些条件下,Wronskian 不为零可推出线性无关。)

发音 Pronunciation

/vrnskin/

例句 Examples

The Wronskian of the two solutions is nonzero on the interval.
这两个解的朗斯基行列式在该区间上不为零。

In solving a second-order linear differential equation, we compute the Wronskian to confirm that our candidate solutions form a fundamental set.
在求解二阶线性微分方程时,我们计算朗斯基行列式来确认候选解构成一个基本解组。

词源 Etymology

Wronskian 源自波兰数学家 Józef Hoene-Wroski(约瑟夫霍内-弗龙斯基) 的姓氏;该行列式以他命名,用于与他相关的函数理论与微分方程研究传统中。

相关词 Related Words

文学与经典著作中的用例 Literary Works

  • E. L. Ince, Ordinary Differential Equations(《常微分方程》)在解的线性无关性与解空间讨论中使用 Wronskian。
  • Boyce & DiPrima, Elementary Differential Equations and Boundary Value Problems(《常微分方程与边值问题》)以 Wronskian 检验基本解组与通解构造。
  • Erwin Kreyszig, Advanced Engineering Mathematics(《高等工程数学》)在微分方程章节中用 Wronskian 说明解的独立性与相关定理。
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