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Conjugate[...]不等于MatrixFunction[Conjugate, ...]

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hbghlyj Posted at 2024-12-5 22:17:43 |Read mode
  1. Conjugate[{{0, 1}, {-1, 0}}]
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{{0, 1}, {-1, 0}}
  1. MatrixFunction[Conjugate, {{0, 1}, {-1, 0}}]
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{{0, -1}, {1, 0}}

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 Author| hbghlyj Posted at 2024-12-5 22:25:30
关于 MatrixFunction[Conjugate, ...] 见non-holomorphic functional calculus for matrices
Definition 2.5. Let $A \in \mathbb{M}_n(\mathbb{C})$ be given in the Jordan canonical form as
\[
A=T(D+N) T^{-1}
\]
where $D$ is a diagonal matrix consisting of the eigenvalues. Then the conjugate $A^c$ is given by
\[
A^c=T \bar{D} T^{-1} .
\]

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 Author| hbghlyj Posted at 2024-12-5 22:29:54

当NormalMatrixQ[A]==True,则MatrixFunction[Conjugate, A]== ConjugateTranspose[A]

适用于一楼的例子
Screenshot 2024-12-05 142846.png

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 Author| hbghlyj Posted at 2024-12-5 22:34:15

保存收集的 functional calculus 資料

$type 2_Functional_Calculus.pdf (299.73 KB, Downloads: 33)

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