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Jul 28, 2016 at 23:13 answer added user24815 timeline score: 1
Dec 11, 2015 at 22:40 answer added Robert Bryant timeline score: 2
Nov 11, 2015 at 17:07 answer added Abdelmalek Abdesselam timeline score: 0
Nov 9, 2015 at 22:52 comment added Stanley Yao Xiao @NoamD.Elkies Is there any criterion which depends only on the coefficients of the sextic which determines whether such an involution exists?
Nov 8, 2015 at 6:18 comment added Noam D. Elkies In general it can't be done even over ${\bf C}$, because the roots of such a sextic are paired by some involution of ${\bf P}^1$, and this happens only in a hyperplane in the space of all binary sextics.
Nov 8, 2015 at 4:39 history asked Stanley Yao Xiao CC BY-SA 3.0