Modified Bloch–Beilinson prediction via the niveau filtration

Let XX be an abelian variety of dimension dd over C\mathbf{C}, let N~1Hd(X)\widetilde{N}^1H^d(X) be the first niveau-filtration step, and let GdCH0(X)G^dCH_0(X) be the deepest piece of the divisor-intersection filtration. Suppose f:XXf:X\to X is an automorphism such that the induced map

f:Hd(X)N~1Hd(X)Hd(X)N~1Hd(X)f_*:\frac{H^d(X)}{\widetilde{N}^1H^d(X)}\to\frac{H^d(X)}{\widetilde{N}^1H^d(X)}

is the identity. Modified Bloch–Beilinson prediction. The restriction of f:CH0(X)CH0(X)f_*:CH_0(X)\to CH_0(X) induces the identity

f:GdCH0(X)GdCH0(X).f_*:G^dCH_0(X)\to G^dCH_0(X).

The modification replaces the top holomorphic-form quotient by the quotient through the niveau filtration; its validity is open in the stated generality.

Sources & referencesView supporting material

Primary source

Rakesh Pawar, “Action of Correspondences on Filtrations on Cohomology and 0-cycles of Abelian Varieties”, arXiv:1704.04282 (2017).

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