Spectrum nonincreasing maps on matrices
classification
🧮 math.RA
keywords
mapsmatricesspectrumclassifiedcomplexincreasenonincreasingsense
read the original abstract
Maps $\Phi$ which do not increase the spectrum on complex matrices in a sense that $\Sp(\Phi(A)-\Phi(B))\subseteq\Sp(A-B)$ are classified.
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