Integral surjectivity conjecture for the logarithmic cycle class map

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Let X/CX/{\mathbb C} be a smooth projective variety and m≥1m\geq 1. Consider the integral logarithmic map

dlog⁡m:CHm(Spec⁡(C(X)),m)→Γ(Hm(C(X),Z(m))).d\log_m:\textup{CH}^{m}(\operatorname{Spec}({\mathbb C}(X)),m)\to \Gamma\big(H^{m}({\mathbb C}(X),{\mathbb Z}(m))\big).

Integral dlog⁡d\log conjecture. The map dlog⁡md\log_m is surjective. The rationalized map is the generic-point cycle class map lim⁡(clm,m)\lim(\textup{cl}_{m,m}); the source notes that rational surjectivity is equivalent to integral surjectivity, but does not establish either one.

References

Primary source

Rob de Jeu and James D. Lewis, “Beilinson's Hodge conjecture for smooth varieties”, arXiv:1104.4364 (2011).

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