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Parshin's conjecture : ウィキペディア英語版
Parshin's conjecture
In mathematics, more specifically in algebraic geometry, Parshin's conjecture (also referred to as the Beilinson–Parshin conjecture) states that for any smooth projective variety ''X'' defined over a finite field, the higher algebraic K-groups vanish up to torsion:
:K_i(X) \otimes \mathbf Q = 0 \ \, i > 0.
It is named after Aleksei Nikolaevich Parshin and Alexander Beilinson.
==Points and curves==
The conjecture holds for a finite field by Quillen's computations of the ''K''-groups in this case. Secondly, for a smooth proper curve, Quillen〔see 〕 has shown that the ''K''-groups are finitely generated, while Harder's computations show that the groups are torsion. The two results together thus show Parshin's conjecture for curves.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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