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Oct 16, 2022 at 22:50 history edited Blue CC BY-SA 4.0
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Oct 16, 2022 at 21:26 history edited Blue CC BY-SA 4.0
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Oct 16, 2022 at 16:07 comment added Zerox There are some weaker conditions, like "for a non-zero measure open set $W \subseteq G$, at least one of the following equations holds: $t(t(a,b,c),b,c)=a;t(a,t(a,b,c),c)=b;t(a,b,t(a,b,c))=c$", that make each isodynamic point alone "tetradic". However many require a (natural) geometric structure on $\Bbb{T}$.
Oct 16, 2022 at 10:49 history edited Blue CC BY-SA 4.0
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Oct 16, 2022 at 6:43 history answered Blue CC BY-SA 4.0