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Results tagged with traces
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user 104794
For questions involving the trace of a square matrix, i.e. the sum of the elements on the main diagonal.
3
votes
1
answer
766
views
Norm and trace inequalities
If $A$ and $B$ are two positive definite matrices such that $\|A\| \leq \|B\|$ for every unitarily invariant norm $\| \cdot \|$, and $U$ is an $n\times k$ matrix with adjoint $V$ such that $VU = I_k$, …
