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Results tagged with banach-spaces
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user 39717
A Banach space is a complete normed vector space: A vector space equipped with a norm such that every Cauchy sequence converges.
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answers
762
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How hard (P, NP, NP-hard) is it to compute Schur norms of matrices (as multipliers)?
Given a matrix $A\in M_n(\mathbb{C})$, I will denote by $||A||_\infty$ the operator norm of $A$, as seen acting on the Hilbert space $\mathbb{C}^n$. This makes $M_n(\mathbb{C})$ into a Banach space (a …
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