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Aug 10, 2018 at 21:16 comment added Dror Speiser Say, how many formal groups are there, and how many such towers are there? The formal groups will be determined by their logarithm, each of which is a countable number of coefficients, each of which in turn can be approximated by an integer while preserving the field extension tower (I think). As for the number of towers, I've heard the words "wild problem" before. Is it possible that once you allow $\zeta_p\in k$, then there are more than a countable number of towers? Since everything is abelian, maybe it's not possible...
Aug 10, 2018 at 11:01 history bumped CommunityBot This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
Jul 11, 2018 at 10:04 answer added Jz Pan timeline score: 4
Jul 11, 2018 at 8:50 history edited Jz Pan CC BY-SA 4.0
rephrase a little bit
Jul 5, 2018 at 12:15 history edited Jz Pan CC BY-SA 4.0
consider a special case
Jul 4, 2018 at 7:40 history asked Jz Pan CC BY-SA 4.0