T. Bottazzi

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20132026

most citedGeodesic neighborhoods in unitary orbits of self-adjoint operators of K+C

1 citations · 3 across the 6 of their papers we have counts for

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math.FA2026

Best approximants relative to a C $^{*}$ -subalgebra, joint numerical range and subdifferentials

Tamara Bottazzi, Alejandro Varela

We study the minimality of $n \times n$ Hermitian matrices $A$ respect to a $C^{*}$ -subalgebra $B$ of $M_{n} (C)$ in the spectral norm, that is \[\|A\|\leq \|A+B\|,\ \…

Best approximants relative to a C∗-subalgebra, joint numerical range and subdifferentials

Best approximants relative to a C $^{*}$ -subalgebra, joint numerical range and subdifferentials