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when toggle format what by license comment
Aug 17, 2010 at 0:18 answer added Donu Arapura timeline score: 3
Aug 16, 2010 at 20:22 comment added Donu Arapura You need to assume that $X$ is defined over the reals, and likewise for $F$. Otherwise, there's no way to get a conjugation on $X$ or $F$.
Aug 16, 2010 at 20:16 history asked Dmitry Kerner CC BY-SA 2.5