λ has multiplicity 1 ⇒ rank(A-λI)=n-1, but not necessarily conversely

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hbghlyj Posted at 2022-7-9 05:44:52 |Read mode

Matrix Analysis, by Horn, Johnson, page 43
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Here is Example (1.2.7b) :
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Here is (1.2.13) :
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2025-4-21 19:15 GMT+8

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