The weight-monodromy conjecture for smooth projective varieties

Let S/Qp\mathcal{S}/\mathbb{Q}_p be a smooth projective scheme, let E=Heˊtn(SQp,Ql)E=H^n_{\mathrm{\acute et}}(\mathcal{S}\otimes\overline{\mathbb{Q}_p},\mathbb{Q}_l), and let N:EEN:E\to E be the nilpotent monodromy operator. Let MM_\bullet be the associated increasing monodromy filtration, and let WW^\bullet be the decreasing Frobenius weight filtration on EE, with the weight convention described in the source.

Weight-monodromy conjecture. The two filtrations agree up to the shift specified by

GriME=Grn+iWEfor all iZ.\operatorname{Gr}_i^M E=\operatorname{Gr}_{n+i}^W E\qquad\text{for all }i\in\mathbb{Z}.

The conjecture compares monodromy and Frobenius weights in the ll-adic cohomology of a smooth projective variety. The supplied text does not state a resolution in this generality.

Sources & referencesView supporting material

Primary source

David Corwin and Sa'ar Zehavi, “The Unipotent Chabauty-Kim-Kantor Method for Relative Completions”, arXiv:2411.18846 (2024).

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