735 citations · 977 across the 22 of their papers we have counts for
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math-ph2015★ 11 cited
Connected components of irreducible maps and 1D quantum phases
Oleg Szehr, Michael M. Wolf
We investigate elementary topological properties of sets of completely positive (CP) maps that arise in quantum Perron-Frobenius theory. We prove that the set of primitive CP maps…
math.NA2015★ 10 cited
Maximum of the resolvent over matrices with given spectrum
Oleg Szehr, Rachid Zarouf
In numerical analysis it is often necessary to estimate the condition number and the norm of the resolvent of a given $n\tim…