Answers are grounded in this paper and cite their sources.
Singular numbers of operators between Hilbert spaces are generalized to Banach spaces by s-numbers (in the sense of Pietsch). This allows for different choices, including approximation, Gelfand, Kolmogorov and Bernstein numbers. Here, we present an elementary proof of a bound between the smallest and the largest s-number.
No takes yet. Share an insight, caveat, or question.
Mario Ullrich (2024) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: