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For questions involving prime ideals in commutative or noncommutative rings.

4 votes
1 answer
283 views

Finite type injective ring map between domains preserves the open point $(0)$

I am looking for a proof of the following statement without using full power of Chevalley's theorem on constructible sets. We say a domain $A$ is $0$-open if $\{(0)\}$ is open in $\operatorname{Spec}( …
William Sun's user avatar