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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク radial set ： ウィキペディア英語版 radial set In mathematics, given a linear space $X$, a set $A\; \backslash subseteq\; X$ is radial at the point $x\_0\; \backslash in\; A$ if for every $x\; \backslash in\; X$ there exists a $t\_x\; >\; 0$ such that for every $t\; \backslash in\; ()$, $x\_0\; +\; tx\; \backslash in\; A$. In set notation, $A$ is radial at the point $x\_0\; \backslash in\; A$ if :$\backslash bigcup\_\backslash \; \backslash bigcap\_\backslash \; \backslash bigcup\_\; \backslash \; \backslash subseteq\; A.$ The set of all points at which $A\; \backslash subseteq\; X$ is radial is equal to the algebraic interior.〔 The points at which a set is radial are often referred to as internal points. A set $A\; \backslash subseteq\; X$ is absorbing if and only if it is radial at 0.〔 Some authors use the term ''radial'' as a synonym for ''absorbing'', i. e. they call a set radial if it is radial at 0. == References == 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「radial set」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.