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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Inventiones mathemat...arrow_drop_down
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Inventiones mathematicae
Article . 1996 . Peer-reviewed
License: Springer TDM
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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Motives and filtrations on Chow groups

Authors: Saito, Shuji;

Motives and filtrations on Chow groups

Abstract

Let \(\text{CH}^r(X)\) be the Chow group of algebraic cycles of codimension \(r\) on a smooth complex projective algebraic variety \(X\). According to a conjecture of A. Beilinson and S. Bloch, there should exist a filtration \(\text{CH}^r(X) = F_{\mathcal M}^0\supset \ldots F_{\mathcal M}^\nu\supset\ldots\) which satisfies the following conditions: (1) It is respected by the action of every algebraic correspondence \(\Gamma\) on \(X\); (2) the induced action of \(\Gamma\) on each graded piece depends only on a certain Künneth component of the cohomology class of \(\Gamma\); (3) there exists an integer \(N > 0\) (depending on \(X\)) such that \(F_{\mathcal M}^\nu = 0\). The main result of this paper gives a construction of a certain filtration \((F_H^\nu)\) on \(\text{CH}^r(X)\) which satisfies properties (1) and (2) from above. The conjectural theory of motives, if true, shows that the filtration constructed in the paper coincide with the filtration \((F_{\mathcal M}^\nu)\). The filtration \((F_H^\nu)\) sheds some light on the finiteness properties of the Chow groups. The author introduces a certain rank \(r\) of a family of algebraic cycles viewed as a measure of non-representability of the family. For example, \(\text{Ker}(\rho^i)\otimes{\mathbb{Q}} = 0\) implies that \(r(A^i(X))\leq 1\). Here \(A^i(X)\) is the subgroup of \(\text{CH}^i(X)\) formed by cycle classes which are algebraically equivalent to zero and \(\rho^i:A^i(X)\to \text{Jac}^i(X)\) is the Abel-Jacobi map. As a generalization of most of the previous work on non-representability of Chow groups the author proves that, for any algebraic correspondence \(\Gamma\), \(\text{Im(Gr}_{F_H}^\nu(\Gamma_*)) = 0\) implies that \(r(\text{Im Gr}_{F_H}^\nu(\Gamma_*))\leq \nu-1\). The two conditions are equivalent if \(\nu\leq 2\) or one of the standard Grothendieck conjectures holds.

Related Organizations
Keywords

Chow group, filtration, motives, (Equivariant) Chow groups and rings; motives, Abel-Jacobi map, Generalizations (algebraic spaces, stacks), Parametrization (Chow and Hilbert schemes), algebraic cycles

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
14
Average
Top 10%
Average
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