A variety $X$ over a number field $K$ is said to have **good reduction** at a prime $\mathfrak{p}$ if there is a finite extension $K \subset L$, such that the base change of $X$ from $K$ to $L$ has good reduction at all primes $\mathfrak{q}$ of $L$ above $\mathfrak{p}$.

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- Review status: beta
- Last edited by Raymond van Bommel on 2020-08-25 08:17:10

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