Module

ActualNormalizationInertiaTopology.lean

Nyll.EtaleFundamentalGroups.Inertia.ActualNormalizationInertiaTopology
4 declarations indexed from sourceView source ↗

Original subgroup topology on native normalization inertia

The native actual inertia group inherits exactly the subspace topology of its literal subgroup in the original Krull Galois group. Its topological group and separation properties are inherited from that same subgroup.

Declarations

EtaleFundamentalGroups.Inertia.actualNormalizationInertiaGroup_topologicalSpace

The topology induced by the literal inclusion into the original Krull Galois group, identical to the existing raw subgroup topology.

Source context 4 commands

Surrounding namespaces, section variables, and local commands at this declaration.

noncomputable section
namespace EtaleFundamentalGroups.Inertia
universe u v w
variable (A : Type u) (K : Type v) (L : Type w)
  [CommRing A] [Field K] [Field L]
  [Algebra A K] [IsFractionRing A K]
  [Algebra K L] [Algebra A L] [IsScalarTower A K L] [IsGalois K L]
  (Q : Ideal (SchemeTheory.normalizationCommAlgCat A L).carrier)
instance actualNormalizationInertiaGroup_topologicalSpace :
    TopologicalSpace (actualNormalizationInertiaGroup A K L Q).carrier
EtaleFundamentalGroups.Inertia.actualNormalizationInertiaGroup_isTopologicalGroup
Source context 4 commands

Surrounding namespaces, section variables, and local commands at this declaration.

noncomputable section
namespace EtaleFundamentalGroups.Inertia
universe u v w
variable (A : Type u) (K : Type v) (L : Type w)
  [CommRing A] [Field K] [Field L]
  [Algebra A K] [IsFractionRing A K]
  [Algebra K L] [Algebra A L] [IsScalarTower A K L] [IsGalois K L]
  (Q : Ideal (SchemeTheory.normalizationCommAlgCat A L).carrier)
instance actualNormalizationInertiaGroup_isTopologicalGroup :
    IsTopologicalGroup (actualNormalizationInertiaGroup A K L Q).carrier
EtaleFundamentalGroups.Inertia.actualNormalizationInertiaGroup_t2Space
Source context 4 commands

Surrounding namespaces, section variables, and local commands at this declaration.

noncomputable section
namespace EtaleFundamentalGroups.Inertia
universe u v w
variable (A : Type u) (K : Type v) (L : Type w)
  [CommRing A] [Field K] [Field L]
  [Algebra A K] [IsFractionRing A K]
  [Algebra K L] [Algebra A L] [IsScalarTower A K L] [IsGalois K L]
  (Q : Ideal (SchemeTheory.normalizationCommAlgCat A L).carrier)
instance actualNormalizationInertiaGroup_t2Space :
    T2Space (actualNormalizationInertiaGroup A K L Q).carrier
EtaleFundamentalGroups.Inertia.actualNormalizationInertiaGroup_totallyDisconnectedSpace
Source context 4 commands

Surrounding namespaces, section variables, and local commands at this declaration.

noncomputable section
namespace EtaleFundamentalGroups.Inertia
universe u v w
variable (A : Type u) (K : Type v) (L : Type w)
  [CommRing A] [Field K] [Field L]
  [Algebra A K] [IsFractionRing A K]
  [Algebra K L] [Algebra A L] [IsScalarTower A K L] [IsGalois K L]
  (Q : Ideal (SchemeTheory.normalizationCommAlgCat A L).carrier)
instance actualNormalizationInertiaGroup_totallyDisconnectedSpace :
    TotallyDisconnectedSpace (actualNormalizationInertiaGroup A K L Q).carrier