Classicality detection conjecture via the Fontaine operator
Classicality detection conjecture via the Fontaine operator
Let be the localized Hecke algebra, let be an eigensystem, and let and be the associated Galois characters or representations. Let be the first map of . Fontaine-operator detection conjecture. If is de Rham of -adic Hodge type for every , if is de Rham of -adic Hodge type , and if
then
This is intended to detect the relevant classical eigensystem in the kernel of the Fontaine-operator complex; the supplied text does not state a proof or resolution.
Sources & referencesView supporting material
Primary source
Kojiro Matsumoto, “On the classicality theorem and its applications to the automorphy lifting theorem and the Breuil-Mezard conjecture in some GL_2(Q_p^2) cases”, arXiv:2512.04641 (2025).
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