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May 16, 2018 at 22:23 answer added Thomas timeline score: 2
Apr 22, 2016 at 13:53 answer added user90369 timeline score: 3
Dec 19, 2015 at 6:55 vote accept Jérémy Blanc
Dec 16, 2015 at 5:56 comment added Tito Piezas III Also, for $n=5$, Desboves gave a nice solution in terms of complex numbers as, $$(a\sqrt{2}+b)^5 + (-b+c\sqrt{-2})^5 = (a\sqrt{2}-b)^5 + (b+c\sqrt{-2})^5$$ where $a^2+b^2 = c^2$.
Dec 15, 2015 at 9:20 answer added individ timeline score: 3
Dec 15, 2015 at 3:44 comment added Tito Piezas III For $n=4$, there is some updated data on, "More elliptic curves for $x^4+y^4+z^4 = 1$" in this post.
Dec 14, 2015 at 22:15 history edited Jérémy Blanc CC BY-SA 3.0
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Dec 14, 2015 at 19:02 answer added Alexandre Eremenko timeline score: 11
Dec 14, 2015 at 18:48 answer added Olivier Benoist timeline score: 22
Dec 14, 2015 at 18:48 comment added Christian Elsholtz In the integer case, with $n=4$ there is some info here, on a disproved conjecture of Euler, en.wikipedia.org/wiki/Euler%27s_sum_of_powers_conjecture Elkies had found examples. For $n\geq 5$ examples are known if one uses more variables. (I guess with 3 summands, $n\geq 5$ nothing is known)
Dec 14, 2015 at 18:37 history asked Jérémy Blanc CC BY-SA 3.0