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Results tagged with crystalline-cohomology
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user 328254
4
votes
0
answers
275
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de Rham Witt complex vs. de Rham complex of the Witt ring
I am reading the paper "Revisiting the de Rham-Witt complex" by Bhatt-Lurie-Mathew and I am a bit confused about the difference between $W\Omega_R^*$ and $\hat{\Omega}^*_{W(R)}$.
Let $\mathrm{CAlg}_{\ …
- 218
1
vote
0
answers
181
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How to construct a sheaf on the infinitesimal site from a stratified module
Let $X\to S$ be a morphism of schemes.
Proposition 2.11 of the book "Notes on crystalline cohomology" by Berthelot and Ogus states that a stratified $\mathcal{O}_X$-module $(E,\{\varepsilon_n\colon P^ …
- 218