Degeneration conjecture for Chow-weight spectral sequences

Let SS be a reasonable scheme, let MObjDMc(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 MObjDMc(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.

Sources & referencesView supporting material

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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