翻訳と辞書 Words near each other ・ Projection method (fluid dynamics) ・ Projection micro-stereolithography ・ Projection panel ・ Projection Peak ・ Projection plane ・ Projection Planetarium ・ Projection poi ・ Projection Principle ・ Projection pursuit ・ Projection pursuit regression ・ Projection screen ・ Projection-slice theorem ・ Projection-valued measure ・ Projectional radiography ・ Projectionist ・ Projectionless algebra ・ Projections (album) ・ Projections (John Handy album) ・ Projections (journal) ・ Projections of population growth ・ Projections onto convex sets ・ Projective ・ Projective bundle ・ Projective cone ・ Projective connection ・ Projective cover ・ Projective differential geometry ・ Projective frame ・ Projective geometry ・ Projective group (disambiguation) Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Projectionless algebra ： ウィキペディア英語版 Projectionless algebra In mathematics, a projectionless C *-algebra is a C *-algebra with no projections besides 0 and 1. The problem of whether simple infinite dimensional C *-algebras with this property exist was posed in 1958 by Irving Kaplansky,〔.〕 and the first example of one was published in 1981 by Bruce Blackadar.〔〔.〕 Today other examples are available, such as the reduced group C *-algebra of the free group on finitely many generators.〔.〕 ==Examples== * C, the complex numbers * Function spaces C0((0, 1)) and C((1 )). Note that the first only has 0 as a projection. If K is a compact Hausdorff space, then C(K) is a projectionless algebra if and only if K is connected. 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「Projectionless algebra」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.