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Results tagged with crystalline-cohomology
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user 41103
8
votes
2
answers
382
views
Interpretation of the formal groups arising from the DeRham-Witt complex
In the accepted answer to this question, it is shown that for a proper algebraic variety $X$ we have that $H^{r-i}(X, W\Omega^i)[1/p]$ has slopes from the interval $[i, i+1[$, so namely is isomorphic …
- 841
5
votes
2
answers
1k
views
Are the Eigenvalues of the Frobenius on Crystalline cohomology bounded by degree?
Excuse me if this question is trivial or trivially false, or not at this sites level. Lets work over an algebraically closed field of characteristic $p>0$, say $k$. The action of the Frobenius on $H^r …
- 841