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单词 noncompact
释义

noncompact

adjective
Not compact; (specifically in Mathematics, of a topological space) such that of any collection of open subsets whose union is the whole space, no finite number of these have a union that is the whole space.

Origin

Early 20th century; earliest use found in Transactions of the American Mathematical Society.

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更新时间:2024/9/22 1:11:59