Non-commutative crystalline comparison conjecture
Non-commutative crystalline comparison conjecture
Let be a -adic field with ring of integers , residue field , and absolute Galois group . Let be the Witt-vector ring and the crystalline period ring. For a smooth proper -linear category , write and for its special and completed generic fibres.
Non-commutative crystalline comparison conjecture. There is an isomorphism of -modules
compatible with the -action and Frobenius endomorphism. In particular, the -adic representation is crystalline. This predicts a non-commutative analogue of the crystalline comparison theorem; the source gives no general proof, though related work establishes the commutative comparison theorem and motivates the conjecture.
Sources & referencesView supporting material
Primary source
Keiho Matsumoto, “Crystalline representations and p-adic Hodge theory for non-commutative algebraic varieties”, arXiv:2309.13654 (2025).
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