essential supremum and essential infimum
添加释义
Essential supremum and essential infimum
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abstract:
In mathematics, the concepts of essential supremum and essential infimum are related to the notions of supremum and infimum, but the former are more relevant in measure theory, where one often deals with statements that are not valid everywhere, that is for all elements in a set, but rather almost everywhere, that is, except on a set of measure zero.
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