Timeline for Vanishing of a sum of roots of unity

16 events

when toggle format	what		by	license	comment
Apr 16, 2022 at 20:08	comment	added	François Brunault		I confirm that your argument works to show the non-vanishing of the sum $S_{N,b}$ in my answer for odd $N$. For clarity I included the argument in my answer.
Apr 16, 2022 at 17:45	comment	added	François Brunault		Thanks! Meanwhile, building on this, I give an argument for general $N$, which I think is ok with your previous argument, and should also be ok with your new argument.
Apr 16, 2022 at 17:26	history	edited	LSpice	CC BY-SA 4.0	Link to @FrançoisBrunault's idea
Apr 16, 2022 at 17:23	history	edited	GH from MO	CC BY-SA 4.0	deleted 587 characters in body
Apr 16, 2022 at 17:08	history	edited	GH from MO	CC BY-SA 4.0	edited body
Apr 16, 2022 at 16:55	history	undeleted	GH from MO
Apr 16, 2022 at 16:55	history	edited	GH from MO	CC BY-SA 4.0	deleted 174 characters in body
Apr 16, 2022 at 16:52	history	deleted	GH from MO		via Vote
Apr 16, 2022 at 16:47	history	edited	GH from MO	CC BY-SA 4.0	added 15 characters in body
Apr 16, 2022 at 16:39	history	edited	GH from MO	CC BY-SA 4.0	added 15 characters in body
Apr 16, 2022 at 16:33	history	edited	GH from MO	CC BY-SA 4.0	added 15 characters in body
Apr 16, 2022 at 16:27	history	edited	GH from MO	CC BY-SA 4.0	added 6 characters in body
Apr 16, 2022 at 16:20	history	undeleted	GH from MO
Apr 16, 2022 at 16:20	history	edited	GH from MO	CC BY-SA 4.0	deleted 49 characters in body
Apr 16, 2022 at 16:14	history	deleted	GH from MO		via Vote
Apr 16, 2022 at 16:11	history	answered	GH from MO	CC BY-SA 4.0