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LeanPool.LeanStationaryHarmonicMaps.StationaryHarmonicMap.MonotonicityEuclidean

Euclidean weak monotonicity interfaces #

This module contains the strongest Euclidean and restricted-weight packaged weak monotonicity interfaces.

This file is still part of the internal proof route: it closes the Euclidean coarea and thin-shell ingredients before MainTheorem.lean packages the final user-facing statement.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_weakStationaryMapIn_via_radialShellsVolume_primitiveCutoffs_closed {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hthin : RadialOpenShellsVolumeTendstoZero n) (henergy_radius : WeakEnergyRadiusIntegralFormula Du R0) (hradial_radius : WeakRadialEnergyRadiusIntegralFormula Du R0) (hdefect_loc : MeasureTheory.LocallyIntegrableOn (fun (rho : ) => weakSharpCutoffDefect Du 0 rho) (Set.Ioo 0 R0) MeasureTheory.volume) :

Current strongest packaged weak-map monotonicity interface: primitive cutoffs are constructed, thin radial-shell volume control supplies radius absolute continuity, and the final boundary-to-monotonicity increment is proved inside Lean rather than supplied as an external hderive input.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_stationaryMap_radialShells_closedForWeights {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hthin : RadialOpenShellsVolumeTendstoZero n) (henergy_radius : WeakEnergyRadiusIntegralFormulaForWeights Du R0) (hradial_radius : WeakRadialEnergyRadiusIntegralFormulaForWeights Du R0) (hdefect_loc : MeasureTheory.LocallyIntegrableOn (fun (rho : ) => weakSharpCutoffDefect Du 0 rho) (Set.Ioo 0 R0) MeasureTheory.volume) :

Restricted-weight version of the strongest packaged weak-map monotonicity interface through primitive cutoffs and thin radial-shell volume control.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_radialShellsVolume_closed {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hthin : RadialOpenShellsVolumeTendstoZero n) (henergy_radius : WeakEnergyRadiusIntegralFormula Du R0) (hradial_radius : WeakRadialEnergyRadiusIntegralFormula Du R0) :

Same packaged interface as weakTheta_monotone_from_weakStationaryMapIn_via_radialShellsVolume_primitiveCutoffs_closed, but the local integrability of the sharp-cutoff defect is discharged from the radius absolute-continuity package obtained via thin radial-shell volume control.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_radialShellsVolume_coarea {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hthin : RadialOpenShellsVolumeTendstoZero n) (hcoarea : BallIntegralRadiusDerivativeFormula n) :

Strong packaged weak-map monotonicity interface where the two map-specific radius integration formulas are discharged from one generic ball-integral coarea/radius-derivative theorem.

Restricted-weight version of the strong packaged weak-map monotonicity interface: the generic coarea theorem only needs to hold for measurable essentially bounded radius weights.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_ballVolumeAC_coarea {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hball : EuclideanBallVolumeAbsolutelyContinuous n) (hcoarea : BallIntegralRadiusDerivativeFormula n) :

Strong packaged weak-map monotonicity interface where the thin-shell input is reduced to absolute continuity of the Euclidean ball-volume radius function.

Restricted-weight version where the thin-shell input is reduced to absolute continuity of the Euclidean ball-volume radius function.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean_coarea {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hcoarea : BallIntegralRadiusDerivativeFormula n) :

Strong packaged weak-map monotonicity interface with the Euclidean thin-shell estimate discharged from the explicit ball-volume formula. The only remaining geometric analysis input is the ball-integral coarea/radius-derivative formula.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean_coareaForWeights {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hcoarea : BallIntegralRadiusDerivativeFormulaForWeights n) :

Restricted-weight Euclidean weak-map monotonicity interface. The remaining coarea input only has to be proved for measurable essentially bounded radius weights.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean_finiteIntervalStepApproxAE {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_pos : 0 < R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (happrox : ∀ (c : ), RadiusWeightOn R0 cRadiusWeightFiniteIntervalStepApproxAE R0 c) :

Euclidean weak-map monotonicity from the concrete finite-interval approximation bridge for bounded measurable radius weights. This removes the abstract coarea/radius-derivative hypothesis from the final interface; the only remaining input for this route is a bounded interval-step approximation of each radius weight on (0, R0), with an exceptional set whose radial pullback is null on the ball.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean_radiusRepresentation {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hrep : BallIntegralRadiusDerivativeRepresentation n) :

Same Euclidean weak-map monotonicity interface, but with the remaining coarea input split into a radial density representation plus a.e. derivative identification. This is the next target for replacing the abstract coarea assumption by a direct measure-theoretic proof.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean_weightedRepresentation {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hweighted : BallIntegralRadiusWeightedRepresentation n) (hidentify : BallIntegralRadiusDerivativeIdentification n) :

Same Euclidean weak-map monotonicity interface with the final coarea input split into the pure weighted radial representation and the a.e. derivative identification of the representing density.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean_weightedRepresentation_identified {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hweighted : BallIntegralRadiusWeightedRepresentation n) :

Same Euclidean weak-map monotonicity interface after the unrestricted one-dimensional derivative-identification theorem has been proved: the only remaining coarea-side input is the pure weighted radial representation.

Restricted-weight Euclidean weak-map monotonicity interface with the final coarea input split into the restricted weighted radial representation and the restricted a.e. derivative identification.

Restricted-weight Euclidean weak-map monotonicity interface after the restricted derivative-identification theorem has been proved: the only remaining coarea-side input is the restricted weighted radial representation.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_W12Loc_euclidean {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) :

Fully Euclidean weak-map monotonicity interface after the radial pushforward/coarea representation has been supplied by the Radon-Nikodym density.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_increment_eq_weakMonotonicityRhs_from_W12Loc_euclidean {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 s r : } (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hs_pos : 0 < s) (hsr : s < r) (hr_lt : r < R0) :
weakTheta Du 0 r - weakTheta Du 0 s = weakMonotonicityRhs Du 0 s r

Fully Euclidean weak-map increment formula in the origin-centered form.

This is the equality form of the monotonicity formula: weakTheta r - weakTheta s is the annular radial-energy term weakMonotonicityRhs s r.

theorem LeanStationaryHarmonicMaps.StationaryHarmonicMap.weakTheta_monotone_from_weakStationaryMapIn_via_constructed_primitive {n m : } [NeZero n] {u : Domain nTarget m} {Du : Domain nGradient n m} {Ω : Set (Domain n)} {R0 : } (hR0_nonneg : 0 R0) (hmap : WeakStationaryMapIn u Du Ω) (hΩ_meas : MeasurableSet Ω) (hclosedBall_subset : Metric.closedBall 0 R0 Ω) (hflat : ScalarCutoffsConstNearOrigin R0) (henergy_radius : WeakEnergyRadiusIntegralFormula Du R0) (hradial_radius : WeakRadialEnergyRadiusIntegralFormula Du R0) (hdefect_loc : MeasureTheory.LocallyIntegrableOn (fun (rho : ) => weakSharpCutoffDefect Du 0 rho) (Set.Ioo 0 R0) MeasureTheory.volume) (henergy_ibp : WeakBallEnergyIntegrationByPartsFormula Du R0) (hibp_int : WeakOneDimensionalIBPIntegrability Du R0) (hderive : WeakBoundaryIdentity Du 0 R0∀ ⦃s r : ⦄, 0 < ss < rr < R0weakTheta Du 0 r - weakTheta Du 0 s = weakMonotonicityRhs Du 0 s r) :

Final packaged weak-map interface with the primitive-cutoff realization constructed from interval integrals and smooth bumps. The remaining one-dimensional inputs are the energy IBP formula and its integrability side conditions.