Kestutis Cesnavicius
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Registered User
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May 9 |
revised |
Etale Cohomology of Punctured Spectra of Local Rings added 8 characters in body |
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May 9 |
revised |
Etale Cohomology of Punctured Spectra of Local Rings added 66 characters in body; added 7 characters in body |
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May 9 |
revised |
Etale Cohomology of Punctured Spectra of Local Rings deleted 2 characters in body |
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May 9 |
answered | Etale Cohomology of Punctured Spectra of Local Rings |
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May 3 |
accepted | a question of Galois cohomology |
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May 3 |
revised |
a question of Galois cohomology added 106 characters in body |
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May 3 |
comment |
a question of Galois cohomology A more informative title wouldn't hurt, I think. |
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May 3 |
answered | a question of Galois cohomology |
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Apr 24 |
accepted | ramification of discrete valuation field |
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Apr 24 |
comment |
ramification of discrete valuation field Yes, it can. See Serre "Proprietes galoissienes..." Prop. 7 in section 1.8. |
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Apr 24 |
answered | ramification of discrete valuation field |
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Apr 23 |
comment |
When are Abelian schemes projective? When the base in integral and geom. unibranch, abelian schemes are projective; see Raynaud "Faisceaux amples..." XI.1.4. |
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Apr 20 |
awarded | ● Yearling |
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Feb 21 |
comment |
Is there excision for fppf cohomology? Thanks for your comment! As you explain, in the Noetherian case one can replace $X^{\prime}$ by an open $V \subset X^{\prime}$ containing $Z^{\prime}$ and replace $X$ by its image $U = f(V)$ to reduce to the case where $f$ is etale. In this case, for the purpose of showing that the two pull-backs of $\gamma^{\prime}$ to $X^{\prime} \times_X X^{\prime}$ agree, one can restrict the attention to the small etale site, which is the case treated in Milne. |
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Feb 21 |
asked | Is there excision for fppf cohomology? |
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Feb 4 |
comment |
purity for finite flat group schemes You may find the Appendix of Gille, Pianzola "Isotriviality and etale cohomology of Laurent polynomial rings" relevant (though I don't think it addresses your question precisely). |
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Jan 27 |
comment |
Flat cohomology for finite infinitesimal group scheme over a perfect field What precisely do you want to know about it? |
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Jan 10 |
awarded | ● Nice Answer |
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Dec 5 |
comment |
restriction and pullback of representable etale sheaf along closed immersion Are you working with small or big etale sites? Your 1. (1) only makes sense to me in the big etale site, in which case the agreement that you want results from the definition of $i^*G$. |
