Localization of Regular Local Ring is Regular #
In this file, we establish the full version of Auslander-Buchsbaum-Serre criterion and its corollary that localization of regular local ring is regular.
theorem
Auslander_Buchsbaum_Serre
(R : Type u)
[CommRing R]
[IsLocalRing R]
[IsNoetherianRing R]
[Small.{v, u} R]
:
theorem
isRegularLocalRing_localization
(R : Type u)
[CommRing R]
[IsRegularLocalRing R]
(p : Ideal R)
[p.IsPrime]
:
theorem
IsRegularLocalRing.of_isLocalization
(R : Type u)
[CommRing R]
[IsRegularLocalRing R]
(p : Ideal R)
[p.IsPrime]
(S : Type u_1)
[CommRing S]
[Algebra R S]
[IsLocalization.AtPrime S p]
:
theorem
isRegularRing_of_globalDimension_lt_top
(R : Type u)
[CommRing R]
[IsNoetherianRing R]
[Small.{v, u} R]
(h : globalDimension R < ⊤)
:
theorem
isRegularRing_of_localization_maximal_isRegularLocalRing
(R : Type u)
[CommRing R]
[IsNoetherianRing R]
(h : ∀ (m : Ideal R) (x : m.IsMaximal), IsRegularLocalRing (Localization.AtPrime m))
: