The étale and Zariski motivic complex comparison conjectures for p-adic étale Tate twists

Let XX be in the setting of the paper, let nn and rr be the relevant integers, and let Z(n)Xeˊt{\Bbb Z}(n)_X^{{\mathrm{\acute{e}t}}} and Z(n)XZar{\Bbb Z}(n)_X^{{\mathrm{Zar}}} denote the étale and Zariski sheafifications of Bloch's cycle complex. Let ε\varepsilon be the natural continuous map of sites

XeˊtXZar.X_{{\mathrm{\acute{e}t}}}\longrightarrow X_{{\mathrm{Zar}}}.

Comparison conjecture. (1) There is an isomorphism in Db(Xeˊt,Z/prZ)D^b(X_{{\mathrm{\acute{e}t}}},{\Bbb Z}/p^r{\Bbb Z})

Z(n)XeˊtLZ/prZTr(n)X.{\Bbb Z}(n)_X^{{\mathrm{\acute{e}t}}}\otimes^{{\Bbb L}}{\Bbb Z}/p^r{\Bbb Z}\simeq {\frak T}_r(n)_X.

(2) The isomorphism in (1) induces an isomorphism in Db(XZar,Z/prZ)D^b(X_{{\mathrm{Zar}}},{\Bbb Z}/p^r{\Bbb Z})

Z(n)XZarLZ/prZτnRεTr(n)X.{\Bbb Z}(n)_X^{{\mathrm{Zar}}}\otimes^{{\Bbb L}}{\Bbb Z}/p^r{\Bbb Z}\simeq \tau_{\leq n}R\varepsilon_*{\frak T}_r(n)_X.

These expectations concern the relationship between the newly constructed semistable-family object Tr(n)X{\frak T}_r(n)_X and motivic complexes. The paper presents the motivic complexes as strong candidates and derives these statements as hoped-for consequences, but no resolution is supplied here.

Sources & referencesView supporting material

Primary source

Kanetomo Sato, “p-adic étale Tate twists and arithmetic duality”, arXiv:math/0610426 (2006).

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