Monodromy conjecture for log mixed objects

Let kk be the base field, let P{\mathcal {P}} be the class of schemes considered in the source, and let XPX\in {\mathcal {P}}. The monodromy operator is

N:Hm(X)Hm(X)(1).N:H^m(X)_{\ell}\to H^m(X)_{\ell}(-1).

The associated objects Hm(X)H^m(X)^{\flat}, Hm(X)(1)H^m(X)(-1)^{\flat}, Hm(X)H^m(X)^{\flat*}, and Hm(X)(1)H^m(X)(-1)^{\flat*} are defined through the log and enlarged log categories. Monodromy conjecture. The operator NN comes from geometry rather than only from Galois theory: it is a morphism

Hm(X)Hm(X)(1),H^m(X)^{\flat}\to H^m(X)(-1)^{\flat},

and hence a morphism

Hm(X)Hm(X)(1).H^m(X)^{\flat*}\to H^m(X)(-1)^{\flat*}.

This is part of the broader comparison conjectures relating motivic morphisms to Hodge- and Tate-theoretic morphisms. The supplied text records it as an expectation and gives no resolution evidence.

Sources & referencesView supporting material

Primary source

Kazuya Kato, Chikara Nakayama and Sampei Usui, “Mixed objects are embedded into log pure objects”, arXiv:2212.10970 (2022).

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