Zulip Chat Archive

Stream: Is there code for X?

Topic: Localization inside of fraction field


Adam Topaz (Apr 13 2022 at 14:09):

Suppose I have a domain AA and a fraction field KK of AA (declared in the usual way using [fraction_ring A K].
Suppose I also have a prime ideal p\mathfrak{p} of AA. What's the idiomatic way to consider the localization of AA at p\mathfrak{p} as a subring of KK?

Adam Topaz (Apr 13 2022 at 14:10):

Ideally I would like its carrier to be defeq to

{ x |  (a s : A) (hs : s  P.prime_compl), x = a * s⁻¹ }

Adam Topaz (Apr 13 2022 at 16:20):

#13425


Last updated: Dec 20 2023 at 11:08 UTC