Every family of child ideals over the support of `Dv` is realized by a two-chart curve datum matching `Dv`: any global function with the prescribed chart strict transforms has strict transform `I Q` a
ProvedTypeDensity.child_ideals_curve_datumtype-density
Every family of child ideals over the support of Dv is realized by a two-chart curve datum matching Dv: any global function with the prescribed chart strict transforms has strict transform I Q at every point Q.
Preamble
import Definitions.Def_TypeDensity_Basic import Definitions.Def_TypeDensity_Formula_LawAlgebra import Definitions.Def_TypeDensity_Measure_AdicCylinders import Definitions.Def_TypeDensity_Measure_HenselProducts import Definitions.Def_TypeDensity_Surfaces_Lengths import Definitions.Def_TypeDensity_Surfaces_PowerSeries import Definitions.Def_TypeDensity_Formula_FiniteFieldCounts import Definitions.Def_TypeDensity_Formula_StateCombinatorics import Definitions.Def_TypeDensity_Blowup_Directions import Definitions.Def_TypeDensity_Unramified_Extension import Definitions.Def_TypeDensity_Blowup_Charts import Definitions.Def_TypeDensity_Algebra_AlgebraType import Definitions.Def_TypeDensity_Measure_PrimitiveLocus import Definitions.Def_TypeDensity_Algebra_FactorInvariant import Definitions.Def_TypeDensity_Surfaces_TruncatedSeries import Definitions.Def_TypeDensity_Surfaces_ConcreteAtlas import Definitions.Def_TypeDensity_Blowup_DivisorPoints import Theorems.Thm_TypeDensity_directionPoint_properties import Theorems.Thm_TypeDensity_mul_injective_quotient_transport import Theorems.Thm_TypeDensity_exists_pow_le_span_pair_transport import Theorems.Thm_TypeDensity_map_maximalIdeal_localCompletion import Theorems.Thm_TypeDensity_map_maximalIdeal_localCompletion_transport import Theorems.Thm_TypeDensity_two_chart_common_multiplicity_eq import Theorems.Thm_TypeDensity_direction_point_overlap_maximal import Theorems.Thm_TypeDensity_infinity_point_maximal import Theorems.Thm_TypeDensity_completed_point_transport_left import Theorems.Thm_TypeDensity_completed_point_transport_right import Theorems.Thm_TypeDensity_child_ideal_generator_transverse_finite import Theorems.Thm_TypeDensity_concrete_surface_parameterIdeal_isMaximal import Theorems.Thm_TypeDensity_blowupChart_concrete_isNoetherianRing import Theorems.Thm_TypeDensity_concrete_surface_data_exists_unconditional import Mathlib.FieldTheory.RatFunc.Basic import Mathlib.MeasureTheory.Measure.Haar.Unique import Mathlib.NumberTheory.ArithmeticFunction.Moebius import Mathlib.NumberTheory.Padics.PadicIntegers import Mathlib.RingTheory.IntegralClosure.IntegralRestrict import Mathlib.RingTheory.MvPowerSeries.Basic import Mathlib.RingTheory.RamificationInertia.Basic import Mathlib.Topology.Algebra.Nonarchimedean.AdicTopology import Mathlib.FieldTheory.Finite.GaloisField import Mathlib.RingTheory.AdicCompletion.Algebra import Mathlib.RingTheory.RegularLocalRing.Defs import Mathlib.Topology.Algebra.MvPolynomial import Mathlib.Algebra.Group.Pi.Units import Mathlib.Order.CompletePartialOrder import Mathlib.RingTheory.Henselian import Mathlib.RingTheory.Polynomial.Resultant.Basic import Mathlib.RingTheory.SimpleRing.Principal import Mathlib.FieldTheory.Finite.Extension import Mathlib.RingTheory.AdicCompletion.Noetherian import Mathlib.RingTheory.MvPowerSeries.Equiv import Mathlib.RingTheory.PicardGroup import Mathlib.FieldTheory.RatFunc.AsPolynomial import Mathlib.RingTheory.AdicCompletion.Completeness import Mathlib.Algebra.GroupWithZero.Submonoid.CancelMulZero import Mathlib.Algebra.Module.StablyFree.Basic import Mathlib.NumberTheory.Padics.RingHoms import Mathlib.Algebra.Azumaya.Basic import Mathlib.RingTheory.AdicCompletion.RingHom import Mathlib.RingTheory.TotallySplit import Mathlib.RingTheory.AdicCompletion.LocalRing import Mathlib.RingTheory.KrullDimension.NonZeroDivisors import Mathlib.Algebra.Group.NatPowAssoc set_option autoImplicit false open TypeDensity open scoped BigOperators ENNReal
Formal statement
theorem TypeDensity.child_ideals_curve_datum (O : Type) [CommRing O] [IsDomain O] [IsDiscreteValuationRing O]
[IsAdicComplete (IsLocalRing.maximalIdeal O) O] [Finite (IsLocalRing.ResidueField O)] (pi : O)
(hpi : Irreducible pi) (u : (TwoSeries O)ˣ) (a b : ℕ) (ha : 0 < a)
[IsLocalRing (ConcreteSurface O pi u a b)]
(e : ((BlowupChart (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b)) ⧸ (chartExceptional (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b))) ≃+* Polynomial (IsLocalRing.ResidueField
(ConcreteSurface O pi u a b)))
(he : ∀ r : ConcreteSurface O pi u a b, e (Ideal.Quotient.mk ((chartExceptional (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b)))
((chartBase (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b)) r)) = Polynomial.C (IsLocalRing.residue (ConcreteSurface O pi u a b) r))
(heZ : e (Ideal.Quotient.mk ((chartExceptional (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b))) ((chartSlope (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b)))) = Polynomial.X)
(Dv : ExceptionalDivisor (IsLocalRing.ResidueField (ConcreteSurface O pi u a b)))
(hinf : (infinityPoint (ConcreteSurface O pi u a b) (surfaceT O pi u a b)
(surfaceX O pi u a b)).IsPrime) (s : State) (d : ℕ)
(beta : BlowupRestriction (ConcreteSurface O pi u a b) (surfaceT O pi u a b)
(surfaceX O pi u a b))
(I : ∀ Q : divisorSupport Dv, Ideal (divisorLocalRing (ConcreteSurface O pi u a b)
(surfaceT O pi u a b) (surfaceX O pi u a b) e Dv hinf Q))
(hI : ∀ Q : divisorSupport Dv, I Q ∈ childIdealSet (ConcreteSurface O pi u a b)
(surfaceT O pi u a b) (surfaceX O pi u a b) e Dv hinf s d Q) :
∃ D : TwoChartCurveData (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b)
beta, MatchesDivisor e D Dv ∧ ∀ f : ConcreteSurface O pi u a b,
(∀ s : D.ι ⊕ D.ι0,
strictTransformAt (ConcreteSurface O pi u a b) (surfaceT O pi u a b) (surfaceX O pi u a b)
(leftPoint D s) d (Ideal.span {f}) = Ideal.span {leftData D s}) →
(∀ s : D.ι ⊕ D.ιinf, strictTransformAt (ConcreteSurface O pi u a b) (surfaceX O pi u a b)
(surfaceT O pi u a b) (rightPoint D s) d (Ideal.span {f}) =
Ideal.span {rightData D s}) →
∀ Q : divisorSupport Dv, divisorStrictTransform (ConcreteSurface O pi u a b)
(surfaceT O pi u a b) (surfaceX O pi u a b) e Dv hinf d (Ideal.span {f}) Q =
I Q := by sorrySource
TypeDensity/Blowup/DivisorPoints.lean#L472-L526