Degeneration conjecture for Chow-weight spectral sequences

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Let SS be a reasonable scheme, let M∈Obj⁡DMc(S)M\in \operatorname{Obj}DM_c(S), and let TwChow(HQlet,M)T_{w_{Chow}}({\mathcal{H}}^{et}_{{\mathbb{Q}_l}},M) denote the Chow-weight spectral sequence associated with MM and the étale realization functor.

Degeneration conjecture. The spectral sequence TwChow(HQlet,M)T_{w_{Chow}}({\mathcal{H}}^{et}_{{\mathbb{Q}_l}},M) degenerates at E2E_2 for any M∈Obj⁡DMc(S)M\in \operatorname{Obj}DM_c(S).

Such degeneration would provide strong structural information about the Chow-weight spectral sequences arising from étale realizations of motives. The source gives no resolution status for this conjecture.

References

Primary source

Mikhail V. Bondarko, “Mixed motivic sheaves (and weights for them) exist if 'ordinary' mixed motives do”, arXiv:1105.0420 (2014).

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