Zulip Chat Archive

Stream: maths

Topic: condensed etale cohomology


view this post on Zulip Reid Barton (Feb 29 2020 at 22:42):

Semi-off topic but perhaps of interest to some people here: Can one define the correct l-adic cohomology Het(X,Zl)H^*_{\mathrm{et}}(X, \mathbb{Z}_l), Het(X,Ql)H^*_{\mathrm{et}}(X, \mathbb{Q}_l) using etale sheaves of condensed abelian groups, or does one really have to use the pro-etale site of XX (afaik, this was the original purpose for introducing it)?

view this post on Zulip Kevin Buzzard (Feb 29 2020 at 23:30):

You're right about the pro-etale site, I have no idea about your question though. Maybe MO?


Last updated: May 11 2021 at 02:05 UTC