Operator norm and unitary matrix – math.stackexchange.com 11:39 Posted by Unknown No Comments I have the following product matrix $XYZ$, with $X,Y,Z$ all $n\times n$ matrices. $X$ and $Z$ are unitary matrices, i.e., they are norm preserving: for every vector $v$, we have $\|Xv \| = \|v\|$. I ... from Hot Questions - Stack Exchange OnStackOverflow via Blogspot Share this Unknown
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