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Results tagged with galois-descent
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user 5743
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Galois descent for semilinear endomorphisms
If $E$ is of dimension $1$, then $\phi$ is given in some basis by a scalar $x \in L$ and you are asking whether there is an element $y \in L^\times$ such that $x \cdot \sigma(y)/y$ belongs to $K$. I d …
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