The dual of the spectral norm is given by || A||2 = 0₁ + ··· + 0₂,

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter5: Orthogonality
Section5.3: The Gram-schmidt Process And The Qr Factorization
Problem 20EQ
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The dual of the spectral norm is given by
||A||20₁ +¹ +0₂²
where 0₁ >> or >0 are the singular values of A € M₂(C) (which has rank r).
Transcribed Image Text:The dual of the spectral norm is given by ||A||20₁ +¹ +0₂² where 0₁ >> or >0 are the singular values of A € M₂(C) (which has rank r).
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