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Dec 2, 2019 at 18:18 comment added Lao-tzu Could you explain what is the maximal unramified extension 𝑀 of a number field 𝐾? I don't find a precise definition. Is it the union of all unramified extension of the number field K inside $\bar{K}=\bar{\mathbb{Q}}$?
Apr 23, 2011 at 9:06 history edited Chandan Singh Dalawat CC BY-SA 3.0
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Apr 23, 2011 at 5:34 history answered Chandan Singh Dalawat CC BY-SA 3.0