Quantitative Analysis and Algebra of Norm-Attainability in Operators in Approximation Theory
Mogoi N. Evans, Samuel B. Apima
Advances in Research · pp. 292–300 · Published 24 May 2025
10.9734/air/2025/v26i31345Abstract
On this note, we investigate the quantitative aspects of norm-attainability in operators, focusing on distances to the set of norm-attainable operators, rates of convergence, and approximation properties. Key results include the structural characterization of norm-attainable operators, convexity of the distance function, and convergence rates for sequences of approximations. We also establish optimality conditions and error bounds for norm approximations, providing new insights into their geometric and analytical behavior. Applications in approximation theory, including spectral and compact operator approximations, are explored, emphasizing practical relevance and computational efficiency.
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