Prove that if λ is an eigenvalue of AA∗, then λ is an eigenvalue of A∗A. This completes the proof of the lemma to Corollary 2 to Theorem 6.43. Theorem 6.43 Corollary 2. Let A be an invertible matrix. Then ||A−1||= 1√λ, where λ is the smallest eigenvalue of A∗A.
Prove that if λ is an eigenvalue of AA∗, then λ is an eigenvalue of A∗A. This completes the proof of the lemma to Corollary 2 to Theorem 6.43. Theorem 6.43 Corollary 2. Let A be an invertible matrix. Then ||A−1||= 1√λ, where λ is the smallest eigenvalue of A∗A.
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter7: Eigenvalues And Eigenvectors
Section7.1: Eigenvalues And Eigenvectors
Problem 80E
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Prove that if λ is an eigenvalue of AA∗, then λ is an eigenvalue of A∗A. This completes the proof of the lemma to Corollary 2 to Theorem 6.43.
Theorem 6.43 Corollary 2. Let A be an invertible matrix. Then ||A−1||= 1√λ, where λ is the smallest eigenvalue of A∗A.
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