翻訳と辞書
Words near each other
・ "O" Is for Outlaw
・ "O"-Jung.Ban.Hap.
・ "Ode-to-Napoleon" hexachord
・ "Oh Yeah!" Live
・ "Our Contemporary" regional art exhibition (Leningrad, 1975)
・ "P" Is for Peril
・ "Pimpernel" Smith
・ "Polish death camp" controversy
・ "Pro knigi" ("About books")
・ "Prosopa" Greek Television Awards
・ "Pussy Cats" Starring the Walkmen
・ "Q" Is for Quarry
・ "R" Is for Ricochet
・ "R" The King (2016 film)
・ "Rags" Ragland
・ ! (album)
・ ! (disambiguation)
・ !!
・ !!!
・ !!! (album)
・ !!Destroy-Oh-Boy!!
・ !Action Pact!
・ !Arriba! La Pachanga
・ !Hero
・ !Hero (album)
・ !Kung language
・ !Oka Tokat
・ !PAUS3
・ !T.O.O.H.!
・ !Women Art Revolution


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

exhaustion by compact sets : ウィキペディア英語版
exhaustion by compact sets
In mathematics, especially analysis, exhaustion by compact sets of an open set ''E'' in the Euclidean space R''n'' (or a manifold with countable base) is an increasing sequence of compact sets K_j, where by increasing we mean K_j is a subset of K_, with the limit (union) of the sequence being ''E''.
Sometimes one requires the sequence of compact sets to satisfy one more property— that K_j is contained in the interior of K_ for each j. This, however, is dispensed in R''n'' or a manifold with countable base.
For example, consider a unit open disk and the concentric closed disk of each radius inside. That is let E = \ and K_j = \. Then taking the limit (union) of the sequence K_j gives ''E''. The example can be easily generalized in other dimensions.
==See also==

*σ-compact space

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「exhaustion by compact sets」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.