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Parshin chain : ウィキペディア英語版 | Parshin chain In number theory, a Parshin chain is a higher-dimensional analogue of a place of an algebraic number field. They were introduced by in order to define an analogue of the idele class group for 2-dimensional schemes. A Parshin chain of dimension ''s'' on a scheme is a finite sequence of points ''p''0, ''p''1, ..., ''p''''s'' such that ''p''''i'' has dimension ''i'' and each point is contained in the closure of the next one. ==References==
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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「Parshin chain」の詳細全文を読む
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