V2EX matrix pair

Matrix Pair

定义 Definition

matrix pair 指“一对矩阵”,通常记作 \((A, B)\)。在数值线性代数中常见于广义特征值问题:\(A\mathbf{x}=\lambda B\mathbf{x}\),或用于比较/联合分析两组线性变换。也可泛指在同一语境下被一起使用或共同研究的两张矩阵。

发音 Pronunciation

/metrks pr/

例句 Examples

We solved the problem using a matrix pair \((A, B)\).
我们用一对矩阵 \((A, B)\) 来解决这个问题。

In the generalized eigenvalue problem, the matrix pair \((A, B)\) determines the eigenvalues through \(A\mathbf{x}=\lambda B\mathbf{x}\).
在广义特征值问题中,一对矩阵 \((A, B)\) 通过 \(A\mathbf{x}=\lambda B\mathbf{x}\) 来决定特征值。

词源 Etymology

matrix 源自拉丁语 matrix,本义与“母体、孕育者”相关,后来在数学中引申为“承载并组织数值的表格/结构”。pair 来自拉丁语 paria(一对、成双),经古法语进入英语。合起来 matrix pair 就是“成对使用的矩阵”。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Matrix Computations(Gene H. Golub, Charles F. Van Loan)讨论矩阵对与相关分解、特征值计算方法
  • Numerical Linear Algebra(Lloyd N. Trefethen, David Bau III)涉及广义特征值与成对矩阵的数值处理
  • Accuracy and Stability of Numerical Algorithms(Nicholas J. Higham)在算法稳定性语境中讨论相关问题
  • 经典论文与数值线性代数文献中常用术语 matrix pair / matrix pencil 来描述 \((A,B)\) 的联合结构
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