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Unitarily invariant norm

by Yee Wei Law - Sunday, 12 February 2023, 2:48 PM
 

A vector norm on is unitarily invariant if for any and unitary matrices of appropriate dimensions and , we have [Hog13, Sec. 24.3].

References

[Hog13] L. Hogben (ed.), Handbook of Linear Algebra, 2nd ed., CRC Press, 2013. https://doi.org/10.1201/b16113.