Timeline for What is the corank of a proper char subgroup of a finite index subgroup of a free group?
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6 events
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| Apr 13, 2017 at 12:19 | history | edited | CommunityBot |
replaced http://math.stackexchange.com/ with https://math.stackexchange.com/
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| May 12, 2015 at 8:28 | comment | added | YCor | That's correct, I'll have to think twice. For the moment it's fine only when $L=F$. | |
| May 12, 2015 at 7:05 | comment | added | Pablo | There is an inaccuracy: "By the previous argument on quotients of the infinite symmetric group, we obtain that the action of $\mathrm{Sym}(J)$ on $L/M$ is trivial. " this requires $L/M$ to be finitely generated, which is not a priori clear. | |
| May 11, 2015 at 16:03 | history | edited | YCor | CC BY-SA 3.0 |
replaced particular case with general case
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| May 11, 2015 at 15:41 | history | edited | Pablo | CC BY-SA 3.0 |
deleted 201 characters in body
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| May 11, 2015 at 14:05 | history | answered | YCor | CC BY-SA 3.0 |