The cellcell-adic monodromy-weight conjecture for cellpcell\neq p

Let KK be a complete discrete valuation field of characteristic zero with finite residue field kk of characteristic pp, let WKW_K be its Weil group with valuation map vv, and let XX be a smooth proper scheme purely of dimension nn over KK. For a prime cellpcell\neq p, write Heˊtm(XK,Qcell)H^m_{\mathrm{\acute{e}t}}(X_{\overline{K}},\mathbb{Q}_{cell}) for its cellcell-adic étale cohomology, let NN be the monodromy operator, and let FilN\operatorname{Fil}^N_\bullet be the associated monodromy filtration. cellcell-adic monodromy-weight conjecture. For sZs\in\mathbb{Z} and gWKg\in W_K, the eigenvalues of gg on

grsNHeˊtm(XK,Qcell)\operatorname{gr}_s^N H^m_{\mathrm{\acute{e}t}}(X_{\overline{K}},\mathbb{Q}_{cell})

are algebraic numbers and the complex absolute values of their conjugates are p(m+s)v(g)/2p^{(m+s)v(g)/2}. The source presents this as a conjecture and does not supply evidence of a general resolution; it is known in several special cases, including good reduction and low cohomological degree.

Sources & referencesView supporting material

Primary source

Koji Shimizu, “A p-adic monodromy theorem for de Rham local systems”, arXiv:2003.10951 (2020).

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