Measure of non-compactness
ID: measure-of-non-compactness
The measure of non-compactness is a concept in functional analysis that quantifies how "far" a set is from being compact. Compactness is an important property in many areas of mathematics, especially in topology and analysis, where it allows for the application of various theorems, such as the Arzelà-Ascoli theorem or the Bolzano-Weierstrass theorem.
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