翻訳と辞書 Words near each other ・ Quatama/NW 205th Ave MAX Station ・ Quater-imaginary base ・ Quatermass (album) ・ Quatermass (band) ・ Quatermass (disambiguation) ・ Quatermass (TV serial) ・ Quatermass 2 ・ Quatermass and the Pit ・ Quatermass and the Pit (film) ・ Quatermass II ・ Quasi-peak detector ・ Quasi-perfect equilibrium ・ Quasi-periodic oscillation ・ Quasi-phase-matching ・ Quasi-polynomial ・ Quasi-projective variety ・ Quasi-property ・ Quasi-quotation ・ Quasi-realism ・ Quasi-reflexive ・ Quasi-relative interior ・ Quasi-rent ・ Quasi-satellite ・ Quasi-separated morphism ・ Quasi-set theory ・ Quasi-solid ・ Quasi-split group ・ Quasi-star ・ Quasi-syllogism ・ Quasi-synchronous transmission 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 Quasi-projective variety ： ウィキペディア英語版 Quasi-projective variety In mathematics, a quasi-projective variety in algebraic geometry is a locally closed subset of a projective variety, i.e., the intersection inside some projective space of a Zariski-open and a Zariski-closed subset. A similar definition is used in scheme theory, where a ''quasi-projective scheme'' is a locally closed subscheme of some projective space.〔(Quasi-projective scheme - Encyclopedia of Mathematics )〕 ==Relationship to affine varieties== An affine space is a Zariski-open subset of a projective space, and since any closed affine subset $U$ can be expressed as an intersection of the projective completion $\backslash bar$ and the affine space embedded in the projective space, this implies that any affine variety is quasiprojective. There are locally closed subsets of projective space that are not affine, so that quasi-projective is more general than affine. Taking the complement of a single point in projective space of dimension at least 2 gives a non-affine quasi-projective variety. This is also an example of a quasi-projective variety that is neither affine nor projective. 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「Quasi-projective variety」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.