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| import Mathlib | |
| import OAI.Probability.JammingConcavity.RowIntegralJets | |
| namespace OAI | |
| /-! Row Parameter Data. -/ | |
| noncomputable section | |
| open MeasureTheory ProbabilityTheory Set | |
| open scoped NNReal ENNReal | |
| open Set Filter | |
| open scoped Topology | |
| open MeasureTheory ProbabilityTheory Filter Set | |
| open scoped ENNReal NNReal Topology BigOperators | |
| open MeasureTheory Filter Set | |
| open scoped ENNReal NNReal BigOperators | |
| open MeasureTheory ProbabilityTheory Set Filter | |
| open scoped ENNReal NNReal Topology | |
| open scoped NNReal ENNReal Topology | |
| open scoped NNReal Topology | |
| open Set | |
| open Set Filter MeasureTheory | |
| open scoped BigOperators | |
| open Set Filter | |
| open scoped Topology | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| open Higher | |
| structure RankFamilyData (I : Set ℝ) (A B : ℝ → ℝ) (F : ℝ → ℝ → ℝ → ℝ) : Prop where | |
| Acont : ContinuousOn A (Icc 0 1) | |
| Bcont : ContinuousOn B (Icc 0 1) | |
| coeff : ∃ D : ℝ,0≤D ∧ (∀ e∈I,∀ t∈Icc (0:ℝ) 1,0≤A t+e*B t ∧ A t+e*B t≤D) ∧ | |
| ∀ t∈Icc (0:ℝ) 1,|B t|≤D | |
| smooth : ∀ e∈I,JointSpatialSmooth (Icc 0 1) (F e) | |
| lower : ∃ L : ℝ,0≤L ∧ ∀ e∈I,∀ t∈Icc (0:ℝ) 1,∀ x, | |
| |F e t x|≤L*(1+x^2) ∧ |deriv (F e t) x|≤L*(1+|x|) | |
| higher : ∀ n : ℕ,2≤n → ∃ H : ℝ,0≤H ∧ ∀ e∈I,∀ t∈Icc (0:ℝ) 1,∀ x,|iteratedDeriv n (F e t) x|≤H | |
| time : ∀ e∈I,∀ t∈Ioo (0:ℝ) 1,∀ x,HasDerivAt (fun s => F e s x) | |
| (-(A t+e*B t)*(iteratedDeriv 2 (F e t) x+t*(iteratedDeriv 1 (F e t) x)^2)) t | |
| terminal : ∀ e∈I,∀ e'∈I,∀ x,F e 1 x=F e' 1 x | |
| lemma RankFamilyData.poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : PolynomialJetFamily (fun e => e∈I) (Icc 0 1) F := by | |
| refine ⟨hf.smooth,fun n => ?_⟩ | |
| obtain ⟨L,hL,hb⟩ := hf.lower | |
| rcases n with _|(_|n) | |
| · exact FamilyGrowth.of_quadratic_bound hL (fun e he t ht x => (hb e he t ht x).1) | |
| · simpa only [iteratedDeriv_succ,iteratedDeriv_zero] using | |
| FamilyGrowth.of_linear_bound hL (fun e he t ht x => (hb e he t ht x).2) | |
| · obtain ⟨H,hH,hh⟩ := hf.higher (n+2) (by omega) | |
| exact FamilyGrowth.of_bound hH hh | |
| lemma RankFamilyData.diffusion_cont {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) (e : ℝ) : ContinuousOn (fun t => A t+e*B t) (Icc 0 1) := | |
| hf.Acont.add (continuousOn_const.mul hf.Bcont) | |
| lemma RankFamilyData.endpoint_linear {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) {ι : Type*} (l r : ι → ℝ) (hl : ∀ i,l i∈I) (hr : ∀ i,r i∈I) | |
| {U H : ι → ℝ → ℝ → ℝ} | |
| (hs : ∀ i,JointSpatialSmooth (Icc 0 1) (U i)) | |
| (hg : ∀ i,∀ n : ℕ,UniformPolynomialGrowth (Icc 0 1) (fun t => iteratedDeriv n (U i t))) | |
| (hH : PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) H) | |
| (ht : ∀ i,∀ t∈Ioo (0:ℝ) 1,∀ x,HasDerivAt (fun s => U i s x) | |
| (H i t x-(A t+l i*B t)*iteratedDeriv 2 (U i t) x- | |
| ((A t+l i*B t)*t*(iteratedDeriv 1 (F (l i) t) x+iteratedDeriv 1 (F (r i) t) x))*iteratedDeriv 1 (U i t) x) t) | |
| (hterm : ∀ i,∀ x,U i 1 x=0) : PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) U := by | |
| obtain ⟨D,hD,hcoef,hB⟩ := hf.coeff | |
| obtain ⟨L,hL,hlo⟩ := hf.lower | |
| let a := fun i t => A t+l i*B t | |
| let b := fun i t x => a i t*t*(iteratedDeriv 1 (F (l i) t) x+iteratedDeriv 1 (F (r i) t) x) | |
| have hc (i : ι) : ContinuousOn (fun t => a i t*t) (Icc 0 1) := (hf.diffusion_cont (l i)).mul continuousOn_id | |
| have hfac (i : ι) {t : ℝ} (ht : t∈Icc (0:ℝ) 1) : |a i t*t|≤D := by | |
| rw [abs_mul,abs_of_nonneg (hcoef (l i) (hl i) t ht).1,abs_of_nonneg ht.1] | |
| exact (mul_le_mul_of_nonneg_right (hcoef (l i) (hl i) t ht).2 ht.1).trans (by nlinarith [ht.2]) | |
| have hb (i : ι) : JointSpatialSmooth (Icc 0 1) (b i) := | |
| (((hf.smooth (l i) (hl i)).jet 1).add ((hf.smooth (r i) (hr i)).jet 1)).coeff_mul (hc i) | |
| have hbb : ∀ n : ℕ,1≤n → ∃ E : ℝ,0≤E ∧ ∀ i,True → ∀ t∈Icc (0:ℝ) 1,∀ x,|iteratedDeriv n (b i t) x|≤E := by | |
| intro n hn | |
| obtain ⟨E,hE,he⟩ := hf.higher (n+1) (by omega) | |
| refine ⟨D*(E+E),by positivity,fun i _ t ht x => ?_⟩ | |
| have hlc := ((hf.smooth (l i) (hl i)).jet 1).1 t ht | |
| have hrc := ((hf.smooth (r i) (hr i)).jet 1).1 t ht | |
| have hlc' : ContDiff ℝ (n:WithTop ℕ∞) (iteratedDeriv 1 (F (l i) t)) := hlc.of_le (by exact_mod_cast (le_top : (n:ℕ∞)≤⊤)) | |
| have hrc' : ContDiff ℝ (n:WithTop ℕ∞) (iteratedDeriv 1 (F (r i) t)) := hrc.of_le (by exact_mod_cast (le_top : (n:ℕ∞)≤⊤)) | |
| dsimp [b] | |
| rw [iteratedDeriv_const_mul_field,iteratedDeriv_fun_add hlc'.contDiffAt hrc'.contDiffAt] | |
| simp only [iteratedDeriv_iteratedDeriv] | |
| rw [abs_mul] | |
| exact mul_le_mul (hfac i ht) ((abs_add_le _ _).trans (add_le_add (he (l i) (hl i) t ht x) (he (r i) (hr i) t ht x))) (abs_nonneg _) hD | |
| refine ⟨fun i _ => hs i,?_⟩ | |
| apply linear_all_jets_growth (a:=a) (b:=b) (H:=H) (by norm_num : (0:ℝ)<1) | |
| (show 0≤D*(L+L) by positivity) hD (fun i _ => hs i) | |
| (fun i _ t ht => hcoef (l i) (hl i) t ht) _ hbb (fun i _ n => hg i n) hH.bounds _ (fun i _ => hterm i) | |
| · intro i _ t ht x | |
| dsimp [b] | |
| rw [abs_mul] | |
| apply (mul_le_mul (hfac i ht) (le_refl _) (abs_nonneg _) hD).trans | |
| calc | |
| D*|iteratedDeriv 1 (F (l i) t) x+iteratedDeriv 1 (F (r i) t) x| ≤ | |
| D*(L*(1+|x|)+L*(1+|x|)) := by | |
| apply mul_le_mul_of_nonneg_left _ hD | |
| simpa only [iteratedDeriv_succ,iteratedDeriv_zero] using | |
| (abs_add_le (deriv (F (l i) t) x) (deriv (F (r i) t) x)).trans (add_le_add (hlo (l i) (hl i) t ht x).2 (hlo (r i) (hr i) t ht x).2) | |
| _ = _ := by ring | |
| · intro i _ | |
| exact linear_evolution_jets (by norm_num) (hs i) (hb i) (hH.smooth i trivial) | |
| (hf.diffusion_cont (l i)) (ht i) | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| open Higher | |
| lemma actual_parameter_family {A B C κ Q : ℝ} {u q η : ℝ → ℝ} | |
| (hQ : 0<Q) (hu : RowAnalyticTerminal u A B C κ Q) (hq : RowSmoothProfile Q q) | |
| (hη : ContDiff ℝ ((⊤ : ℕ∞) : WithTop ℕ∞) η) (hη0 : η 0=0) (hη1 : η 1=0) : | |
| ∃ r : ℝ,0<r ∧ ∃ F : ℝ → ℝ → ℝ → ℝ, | |
| (∀ e,|e|<r → RowClassicalRankSolution u (fun s => q s+e*η s) (F e)) ∧ | |
| RankFamilyData (Ioo (-r) r) (fun t => deriv q t/2) (fun t => deriv η t/2) F := by | |
| classical | |
| obtain ⟨r,hr,hrq⟩ := rowSmooth_perturbation hq hη hη0 hη1 | |
| have hex : ∀ e,∃ f,|e|<r → RowClassicalRankSolution u (fun s => q s+e*η s) f := by | |
| intro e | |
| by_cases he : |e|<r | |
| · obtain ⟨f,hf,_⟩ := row_rank_existence_unique hQ hu (hrq e he) | |
| exact ⟨f,fun _ => hf⟩ | |
| · exact ⟨fun _ _ => 0,fun h => (he h).elim⟩ | |
| choose F hF using hex | |
| have hi (e : ℝ) (he : e∈Ioo (-r) r) : |e|<r := abs_lt.mpr he | |
| obtain ⟨L,hL,H,hH,hbounds⟩ := row_rank_uniform_bounds hQ hu | |
| have hqc := (contDiff_infty_iff_deriv.mp hq.1).2.continuous | |
| have hηc := (contDiff_infty_iff_deriv.mp hη).2.continuous | |
| obtain ⟨tq,htq,hqmax⟩ := isCompact_Icc.exists_isMaxOn (nonempty_Icc.mpr (by norm_num : (0:ℝ)≤1)) hqc.abs.continuousOn | |
| obtain ⟨tη,htη,hηmax⟩ := isCompact_Icc.exists_isMaxOn (nonempty_Icc.mpr (by norm_num : (0:ℝ)≤1)) hηc.abs.continuousOn | |
| have heder (e t : ℝ) : deriv (fun s => q s+e*η s) t=deriv q t+e*deriv η t := by | |
| exact (((hq.1.differentiable (by simp) t).hasDerivAt).add | |
| ((hη.differentiable (by simp) t).hasDerivAt.const_mul e)).deriv | |
| refine ⟨r,hr,F,hF,?_⟩ | |
| refine ⟨(hqc.div_const 2).continuousOn,(hηc.div_const 2).continuousOn,?_,?_,?_,?_,?_,?_⟩ | |
| · let D : ℝ := |deriv q tq|/2+r*(|deriv η tη|/2)+|deriv η tη|/2 | |
| refine ⟨D,by dsimp [D]; positivity,?_,?_⟩ | |
| · intro e he t ht | |
| have hpos := (hrq e (hi e he)).2.2.2 t ht | |
| rw [heder] at hpos | |
| refine ⟨by linarith,?_⟩ | |
| have hab : |e|≤r := (hi e he).le | |
| have hm := mul_le_mul hab ((div_le_div_iff_of_pos_right (by norm_num : (0:ℝ)<2)).mpr (hηmax ht)) (by positivity) hr.le | |
| calc | |
| deriv q t/2+e*(deriv η t/2) ≤ |deriv q t|/2+|e| *(|deriv η t|/2) := by | |
| have ht1 := le_abs_self (deriv q t) | |
| have ht2 := le_abs_self (e*(deriv η t/2)) | |
| rw [abs_mul,abs_div,abs_of_pos (by norm_num : (0:ℝ)<2)] at ht2 | |
| linarith | |
| _ ≤ |deriv q tq|/2+r*(|deriv η tη|/2) := add_le_add (by | |
| have hqbd : |deriv q t| ≤ |deriv q tq| := hqmax ht | |
| linarith) hm | |
| _ ≤ D := by dsimp [D]; linarith [abs_nonneg (deriv η tη)] | |
| · intro t ht | |
| rw [abs_div,abs_of_pos (by norm_num : (0:ℝ)<2)] | |
| have hh : |deriv η t| ≤ |deriv η tη| := hηmax ht | |
| dsimp [D] | |
| nlinarith [abs_nonneg (deriv q tq),abs_nonneg (deriv η tη),mul_nonneg hr.le (abs_nonneg (deriv η tη))] | |
| · intro e he | |
| exact row_rank_smooth hQ hu (hrq e (hi e he)) (hF e (hi e he)) | |
| · exact ⟨L,hL,fun e he => (hbounds _ (hrq e (hi e he)) _ (hF e (hi e he))).1⟩ | |
| · intro n hn | |
| exact ⟨H n,hH n,fun e he => (hbounds _ (hrq e (hi e he)) _ (hF e (hi e he))).2 n hn⟩ | |
| · intro e he t ht x | |
| have hh := (hF e (hi e he)).2.2.2.2.1 t ht x | |
| rw [heder] at hh | |
| convert hh using 1 | |
| simp only [iteratedDeriv_succ,iteratedDeriv_zero] | |
| ring | |
| · intro e he e' he' x | |
| exact ((hF e (hi e he)).2.2.2.2.2.1 x).trans ((hF e' (hi e' he')).2.2.2.2.2.1 x).symm | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| lemma dd1_add (F G : ℝ → ℝ) (a b : ℝ) : dd1 (fun e => F e+G e) a b=dd1 F a b+dd1 G a b := by unfold dd1; ring | |
| lemma dd2_add (F G : ℝ → ℝ) (a b c : ℝ) : dd2 (fun e => F e+G e) a b c=dd2 F a b c+dd2 G a b c := by unfold dd2; rw [dd1_add,dd1_add]; ring | |
| lemma dd3_add (F G : ℝ → ℝ) (a b c d : ℝ) : dd3 (fun e => F e+G e) a b c d=dd3 F a b c d+dd3 G a b c d := by unfold dd3; rw [dd2_add,dd2_add]; ring | |
| lemma dd1_mul (F : ℝ → ℝ) (k a b : ℝ) : dd1 (fun e => k*F e) a b=k*dd1 F a b := by unfold dd1; ring | |
| lemma dd2_mul (F : ℝ → ℝ) (k a b c : ℝ) : dd2 (fun e => k*F e) a b c=k*dd2 F a b c := by unfold dd2; rw [dd1_mul,dd1_mul]; ring | |
| lemma dd3_mul (F : ℝ → ℝ) (k a b c d : ℝ) : dd3 (fun e => k*F e) a b c d=k*dd3 F a b c d := by unfold dd3; rw [dd2_mul,dd2_mul]; ring | |
| lemma dd1_rhs (X Y : ℝ → ℝ) (A B t : ℝ) {a b : ℝ} (hab : a≠b) : | |
| dd1 (fun e => -(A+e*B)*(Y e+t*(X e)^2)) a b = | |
| -B*(Y b+t*(X b)^2)-(A+a*B)*dd1 Y a b- | |
| ((A+a*B)*t*(X a+X b))*dd1 X a b := by | |
| have he : (fun e => -(A+e*B)*(Y e+t*(X e)^2)) = fun e => -1*((A+e*B)*(Y e+t*(X e)^2)) := by funext e; ring | |
| rw [he,dd1_mul,dd1_affine_mul _ _ _ hab,dd1_add,dd1_mul,dd1_square] | |
| ring | |
| lemma dd2_rhs (X Y : ℝ → ℝ) (A B t : ℝ) {a b c : ℝ} | |
| (hab : a≠b) (hac : a≠c) (hbc : b≠c) : | |
| dd2 (fun e => -(A+e*B)*(Y e+t*(X e)^2)) a b c = | |
| (-(A+a*B)*t*dd1 X a b*dd1 X b c-B*(dd1 Y b c+t*(X b+X c)*dd1 X b c))- | |
| (A+a*B)*dd2 Y a b c-((A+a*B)*t*(X a+X c))*dd2 X a b c := by | |
| have he : (fun e => -(A+e*B)*(Y e+t*(X e)^2)) = fun e => -1*((A+e*B)*(Y e+t*(X e)^2)) := by funext e; ring | |
| rw [he,dd2_mul,dd2_affine_mul _ _ _ hab hac hbc,dd2_add,dd2_mul,dd2_square _ hab hac hbc, | |
| dd1_add,dd1_mul,dd1_square] | |
| ring | |
| lemma dd3_rhs (X Y : ℝ → ℝ) (A B t : ℝ) {a b c d : ℝ} | |
| (hab : a≠b) (hac : a≠c) (had : a≠d) (hbc : b≠c) (hbd : b≠d) (hcd : c≠d) : | |
| dd3 (fun e => -(A+e*B)*(Y e+t*(X e)^2)) a b c d = | |
| (-(A+a*B)*t*(dd1 X a b*dd2 X b c d+dd2 X a b c*dd1 X c d)- | |
| B*(dd2 Y b c d+t*((X b+X d)*dd2 X b c d+dd1 X b c*dd1 X c d)))- | |
| (A+a*B)*dd3 Y a b c d-((A+a*B)*t*(X a+X d))*dd3 X a b c d := by | |
| have he : (fun e => -(A+e*B)*(Y e+t*(X e)^2)) = fun e => -1*((A+e*B)*(Y e+t*(X e)^2)) := by funext e; ring | |
| rw [he,dd3_mul,dd3_affine_mul _ _ _ hab hac had hbc hbd hcd,dd3_add,dd3_mul, | |
| dd3_square _ hab hac had hbc hbd hcd,dd2_add,dd2_mul,dd2_square _ hbc hbd hcd] | |
| ring | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| open Higher | |
| lemma field1_time {I : Set ℝ} {F : ℝ → ℝ → ℝ} {D : ℝ → ℝ} {t : ℝ} | |
| (hf : ∀ e∈I,HasDerivAt (F e) (D e) t) (p : Nodes2 I) : | |
| HasDerivAt (fun s => dd1 (fun e => F e s) p.a p.b) (dd1 D p.a p.b) t := | |
| ((hf p.b p.hb).sub (hf p.a p.ha)).div_const (p.b-p.a) | |
| lemma field2_time {I : Set ℝ} {F : ℝ → ℝ → ℝ} {D : ℝ → ℝ} {t : ℝ} | |
| (hf : ∀ e∈I,HasDerivAt (F e) (D e) t) (p : Nodes3 I) : | |
| HasDerivAt (fun s => dd2 (fun e => F e s) p.a p.b p.c) (dd2 D p.a p.b p.c) t := | |
| ((field1_time hf p.bc).sub (field1_time hf p.toNodes2)).div_const (p.c-p.a) | |
| lemma field3_time {I : Set ℝ} {F : ℝ → ℝ → ℝ} {D : ℝ → ℝ} {t : ℝ} | |
| (hf : ∀ e∈I,HasDerivAt (F e) (D e) t) (p : Nodes4 I) : | |
| HasDerivAt (fun s => dd3 (fun e => F e s) p.a p.b p.c p.d) (dd3 D p.a p.b p.c p.d) t := | |
| ((field2_time hf p.bcd).sub (field2_time hf p.toNodes3)).div_const (p.d-p.a) | |
| def source1 {I : Set ℝ} (F : ℝ → ℝ → ℝ → ℝ) (B : ℝ → ℝ) (p : Nodes2 I) (t x : ℝ) : ℝ := | |
| -B t*(iteratedDeriv 2 (F p.b t) x+t*(iteratedDeriv 1 (F p.b t) x)^2) | |
| def source2 {I : Set ℝ} (F : ℝ → ℝ → ℝ → ℝ) (A B : ℝ → ℝ) (p : Nodes3 I) (t x : ℝ) : ℝ := | |
| -(A t+p.a*B t)*t*iteratedDeriv 1 (field1 F p.a p.b t) x*iteratedDeriv 1 (field1 F p.b p.c t) x- | |
| B t*(iteratedDeriv 2 (field1 F p.b p.c t) x+ | |
| t*(iteratedDeriv 1 (F p.b t) x+iteratedDeriv 1 (F p.c t) x)*iteratedDeriv 1 (field1 F p.b p.c t) x) | |
| def source3 {I : Set ℝ} (F : ℝ → ℝ → ℝ → ℝ) (A B : ℝ → ℝ) (p : Nodes4 I) (t x : ℝ) : ℝ := | |
| -(A t+p.a*B t)*t*(iteratedDeriv 1 (field1 F p.a p.b t) x*iteratedDeriv 1 (field2 F p.b p.c p.d t) x+ | |
| iteratedDeriv 1 (field2 F p.a p.b p.c t) x*iteratedDeriv 1 (field1 F p.c p.d t) x)- | |
| B t*(iteratedDeriv 2 (field2 F p.b p.c p.d t) x+t*( | |
| (iteratedDeriv 1 (F p.b t) x+iteratedDeriv 1 (F p.d t) x)*iteratedDeriv 1 (field2 F p.b p.c p.d t) x+ | |
| iteratedDeriv 1 (field1 F p.b p.c t) x*iteratedDeriv 1 (field1 F p.c p.d t) x)) | |
| lemma field1_equation {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) (p : Nodes2 I) {t : ℝ} (ht : t∈Ioo (0:ℝ) 1) (x : ℝ) : | |
| HasDerivAt (fun s => field1 F p.a p.b s x) | |
| (source1 F B p t x-(A t+p.a*B t)*iteratedDeriv 2 (field1 F p.a p.b t) x- | |
| ((A t+p.a*B t)*t*(iteratedDeriv 1 (F p.a t) x+iteratedDeriv 1 (F p.b t) x))*iteratedDeriv 1 (field1 F p.a p.b t) x) t := by | |
| have hh := field1_time (fun e he => hf.time e he t ht x) p | |
| have htc : t∈Icc (0:ℝ) 1 := ⟨ht.1.le,ht.2.le⟩ | |
| rw [dd1_rhs _ _ _ _ _ p.hab] at hh | |
| simpa only [field1_jet hf.smooth p 2 htc x,field1_jet hf.smooth p 1 htc x,source1,field1] using hh | |
| lemma field2_equation {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) (p : Nodes3 I) {t : ℝ} (ht : t∈Ioo (0:ℝ) 1) (x : ℝ) : | |
| HasDerivAt (fun s => field2 F p.a p.b p.c s x) | |
| (source2 F A B p t x-(A t+p.a*B t)*iteratedDeriv 2 (field2 F p.a p.b p.c t) x- | |
| ((A t+p.a*B t)*t*(iteratedDeriv 1 (F p.a t) x+iteratedDeriv 1 (F p.c t) x))*iteratedDeriv 1 (field2 F p.a p.b p.c t) x) t := by | |
| have hh := field2_time (fun e he => hf.time e he t ht x) p | |
| have htc : t∈Icc (0:ℝ) 1 := ⟨ht.1.le,ht.2.le⟩ | |
| rw [dd2_rhs _ _ _ _ _ p.hab p.hac p.hbc] at hh | |
| unfold source2 | |
| rw [field2_jet hf.smooth p 2 htc x,field2_jet hf.smooth p 1 htc x, | |
| field1_jet hf.smooth p.toNodes2 1 htc x] | |
| have hbc1 := field1_jet hf.smooth p.bc 1 htc x | |
| have hbc2 := field1_jet hf.smooth p.bc 2 htc x | |
| dsimp [Nodes3.bc] at hbc1 hbc2 | |
| rw [hbc1,hbc2] | |
| exact hh | |
| lemma field3_equation {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) (p : Nodes4 I) {t : ℝ} (ht : t∈Ioo (0:ℝ) 1) (x : ℝ) : | |
| HasDerivAt (fun s => field3 F p.a p.b p.c p.d s x) | |
| (source3 F A B p t x-(A t+p.a*B t)*iteratedDeriv 2 (field3 F p.a p.b p.c p.d t) x- | |
| ((A t+p.a*B t)*t*(iteratedDeriv 1 (F p.a t) x+iteratedDeriv 1 (F p.d t) x))*iteratedDeriv 1 (field3 F p.a p.b p.c p.d t) x) t := by | |
| have hh := field3_time (fun e he => hf.time e he t ht x) p | |
| have htc : t∈Icc (0:ℝ) 1 := ⟨ht.1.le,ht.2.le⟩ | |
| rw [dd3_rhs _ _ _ _ _ p.hab p.hac p.had p.hbc p.hbd p.hcd] at hh | |
| unfold source3 | |
| rw [field3_jet hf.smooth p 2 htc x,field3_jet hf.smooth p 1 htc x, | |
| field1_jet hf.smooth p.toNodes3.toNodes2 1 htc x,field2_jet hf.smooth p.toNodes3 1 htc x] | |
| have hbc1 := field1_jet hf.smooth p.toNodes3.bc 1 htc x | |
| have hcd1 := field1_jet hf.smooth p.cd 1 htc x | |
| have hbcd1 := field2_jet hf.smooth p.bcd 1 htc x | |
| have hbcd2 := field2_jet hf.smooth p.bcd 2 htc x | |
| dsimp [Nodes3.bc,Nodes4.cd,Nodes4.bcd] at hbc1 hcd1 hbcd1 hbcd2 | |
| rw [hbc1,hcd1,hbcd1,hbcd2] | |
| exact hh | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| open Higher | |
| lemma family_mul_time {ι : Type*} {G : ι → ℝ → ℝ → ℝ} | |
| (hG : PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) G) : | |
| PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) (fun i t x => t*G i t x) := | |
| hG.coeff_mul (fun _ _ => continuousOn_id) (by norm_num : (0:ℝ)≤1) | |
| (fun _ _ _ ht => by rw [abs_of_nonneg ht.1]; exact ht.2) | |
| lemma RankFamilyData.mul_B {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) {ι : Type*} {G : ι → ℝ → ℝ → ℝ} | |
| (hG : PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) G) : | |
| PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) (fun i t x => B t*G i t x) := by | |
| obtain ⟨D,hD,_,hB⟩ := hf.coeff | |
| exact hG.coeff_mul (fun _ _ => hf.Bcont) hD (fun _ _ => hB) | |
| lemma RankFamilyData.mul_at {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) {ι : Type*} (l : ι → ℝ) (hl : ∀ i,l i∈I) {G : ι → ℝ → ℝ → ℝ} | |
| (hG : PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) G) : | |
| PolynomialJetFamily (fun _ : ι => True) (Icc 0 1) (fun i t x => (A t+l i*B t)*t*G i t x) := by | |
| obtain ⟨D,hD,ha,_⟩ := hf.coeff | |
| apply hG.coeff_mul (fun i _ => (hf.diffusion_cont (l i)).mul continuousOn_id) hD | |
| intro i _ t ht | |
| change |(A t+l i*B t)*t|≤D | |
| rw [abs_mul,abs_of_nonneg (ha (l i) (hl i) t ht).1,abs_of_nonneg ht.1] | |
| exact (mul_le_mul_of_nonneg_right (ha (l i) (hl i) t ht).2 ht.1).trans (by nlinarith [ht.2]) | |
| lemma source1_poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : PolynomialJetFamily (fun _ : Nodes2 I => True) (Icc 0 1) (source1 F B) := by | |
| have hbase := hf.poly.comp (R:=fun _ => True) (fun p : Nodes2 I => p.b) (fun p _ => p.hb) | |
| have hh := (hf.mul_B ((hbase.jet 2).add (family_mul_time ((hbase.jet 1).mul (hbase.jet 1))))).const_mul (-1) | |
| convert hh using 1 | |
| funext p t x | |
| dsimp only [source1] | |
| ring | |
| lemma field1_poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : | |
| PolynomialJetFamily (fun _ : Nodes2 I => True) (Icc 0 1) (fun p => field1 F p.a p.b) := by | |
| apply hf.endpoint_linear (fun p : Nodes2 I => p.a) (fun p => p.b) (fun p => p.ha) (fun p => p.hb) | |
| (field1_smooth hf.smooth) (fun p n => ((field1_individual hf.poly p).bounds n).individual (i:=()) trivial) | |
| (source1_poly hf) (fun p t ht x => field1_equation hf p ht x) | |
| intro p x | |
| unfold field1 dd1 | |
| dsimp only | |
| rw [hf.terminal p.b p.hb p.a p.ha x] | |
| simp | |
| lemma source2_poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : PolynomialJetFamily (fun _ : Nodes3 I => True) (Icc 0 1) (source2 F A B) := by | |
| have hab := (field1_poly hf).comp (R:=fun _ => True) (fun p : Nodes3 I => p.toNodes2) (fun _ _ => trivial) | |
| have hbc := (field1_poly hf).comp (R:=fun _ => True) (fun p : Nodes3 I => p.bc) (fun _ _ => trivial) | |
| have hb := hf.poly.comp (R:=fun _ => True) (fun p : Nodes3 I => p.b) (fun p _ => p.hb) | |
| have hc := hf.poly.comp (R:=fun _ => True) (fun p : Nodes3 I => p.c) (fun p _ => p.hc) | |
| have hleft := (hf.mul_at (fun p : Nodes3 I => p.a) (fun p => p.ha) ((hab.jet 1).mul (hbc.jet 1))).const_mul (-1) | |
| have hright := hf.mul_B ((hbc.jet 2).add (family_mul_time (((hb.jet 1).add (hc.jet 1)).mul (hbc.jet 1)))) | |
| convert hleft.sub hright using 1 | |
| funext p t x | |
| dsimp only [source2,Nodes3.bc] | |
| ring | |
| lemma field2_poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : | |
| PolynomialJetFamily (fun _ : Nodes3 I => True) (Icc 0 1) (fun p => field2 F p.a p.b p.c) := by | |
| apply hf.endpoint_linear (fun p : Nodes3 I => p.a) (fun p => p.c) (fun p => p.ha) (fun p => p.hc) | |
| (field2_smooth hf.smooth) (fun p n => ((field2_individual hf.poly p).bounds n).individual (i:=()) trivial) | |
| (source2_poly hf) (fun p t ht x => field2_equation hf p ht x) | |
| intro p x | |
| unfold field2 dd2 dd1 | |
| dsimp only | |
| rw [hf.terminal p.b p.hb p.a p.ha x,hf.terminal p.c p.hc p.a p.ha x] | |
| simp | |
| lemma source3_poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : PolynomialJetFamily (fun _ : Nodes4 I => True) (Icc 0 1) (source3 F A B) := by | |
| have hab := (field1_poly hf).comp (R:=fun _ => True) (fun p : Nodes4 I => p.toNodes3.toNodes2) (fun _ _ => trivial) | |
| have hbc := (field1_poly hf).comp (R:=fun _ => True) (fun p : Nodes4 I => p.toNodes3.bc) (fun _ _ => trivial) | |
| have hcd := (field1_poly hf).comp (R:=fun _ => True) (fun p : Nodes4 I => p.cd) (fun _ _ => trivial) | |
| have habc := (field2_poly hf).comp (R:=fun _ => True) (fun p : Nodes4 I => p.toNodes3) (fun _ _ => trivial) | |
| have hbcd := (field2_poly hf).comp (R:=fun _ => True) (fun p : Nodes4 I => p.bcd) (fun _ _ => trivial) | |
| have hb := hf.poly.comp (R:=fun _ => True) (fun p : Nodes4 I => p.b) (fun p _ => p.hb) | |
| have hd := hf.poly.comp (R:=fun _ => True) (fun p : Nodes4 I => p.d) (fun p _ => p.hd) | |
| have hleft := (hf.mul_at (fun p : Nodes4 I => p.a) (fun p => p.ha) | |
| (((hab.jet 1).mul (hbcd.jet 1)).add ((habc.jet 1).mul (hcd.jet 1)))).const_mul (-1) | |
| have hright := hf.mul_B ((hbcd.jet 2).add (family_mul_time | |
| ((((hb.jet 1).add (hd.jet 1)).mul (hbcd.jet 1)).add ((hbc.jet 1).mul (hcd.jet 1))))) | |
| convert hleft.sub hright using 1 | |
| funext p t x | |
| dsimp only [source3,Nodes3.bc,Nodes4.cd,Nodes4.bcd] | |
| ring | |
| lemma field3_poly {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) : | |
| PolynomialJetFamily (fun _ : Nodes4 I => True) (Icc 0 1) (fun p => field3 F p.a p.b p.c p.d) := by | |
| apply hf.endpoint_linear (fun p : Nodes4 I => p.a) (fun p => p.d) (fun p => p.ha) (fun p => p.hd) | |
| (field3_smooth hf.smooth) (fun p n => ((field3_individual hf.poly p).bounds n).individual (i:=()) trivial) | |
| (source3_poly hf) (fun p t ht x => field3_equation hf p ht x) | |
| intro p x | |
| unfold field3 dd3 dd2 dd1 | |
| dsimp only | |
| rw [hf.terminal p.b p.hb p.a p.ha x,hf.terminal p.c p.hc p.a p.ha x,hf.terminal p.d p.hd p.a p.ha x] | |
| simp | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology NNReal | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| lemma differentiable_of_dd2_bound {F : ℝ → ℝ} {I : Set ℝ} (hI : IsOpen I) | |
| {M : ℝ} (hM : 0≤M) | |
| (hb : ∀ a∈I,∀ b∈I,∀ c∈I,a≠b → a≠c → b≠c → |dd2 F a b c|≤M) : | |
| ∀ a∈I,DifferentiableAt ℝ F a := by | |
| intro a ha | |
| let K : ℝ≥0 := ⟨M,hM⟩ | |
| have hLip : LipschitzOnWith K (dd1 F a) (I\{a}) := by | |
| apply LipschitzOnWith.of_dist_le_mul | |
| intro b hb' c hc' | |
| by_cases hbc : b=c | |
| · simp [hbc] | |
| have hab : a≠b := (show b≠a from hb'.2).symm | |
| have hac : a≠c := (show c≠a from hc'.2).symm | |
| rw [Real.dist_eq,Real.dist_eq,dd1_sub_slope F hab hac hbc,abs_mul] | |
| calc | |
| |b-c| * |dd2 F a b c| ≤ |b-c| * M := mul_le_mul_of_nonneg_left (hb a ha b hb'.1 c hc'.1 hab hac hbc) (abs_nonneg _) | |
| _ = _ := by change |b-c| * M = M * |b-c|; ring | |
| obtain ⟨g,hg,he⟩ := hLip.extend_real | |
| have hd : HasDerivAt F (g a) a := by | |
| rw [hasDerivAt_iff_tendsto_slope] | |
| apply (hg.continuous.continuousAt.tendsto.mono_left nhdsWithin_le_nhds).congr' | |
| filter_upwards [Filter.Eventually.filter_mono nhdsWithin_le_nhds (hI.mem_nhds ha),self_mem_nhdsWithin] with y hy hya | |
| rw [slope_def_field] | |
| exact (he ⟨hy,hya⟩).symm | |
| exact hd.differentiableAt | |
| lemma tendsto_dd2_left {F : ℝ → ℝ} (hF : DifferentiableAt ℝ F 0) {k : ℝ} (hk : k≠0) : | |
| Tendsto (fun h => dd2 F 0 h k) (𝓝[≠] 0) (𝓝 ((dd1 F 0 k-deriv F 0)/k)) := by | |
| have h1 : Tendsto (fun h => dd1 F h k) (𝓝[≠] 0) (𝓝 (dd1 F 0 k)) := by | |
| unfold dd1 | |
| apply Tendsto.div | |
| · exact tendsto_const_nhds.sub (hF.continuousAt.tendsto.mono_left nhdsWithin_le_nhds) | |
| · exact tendsto_const_nhds.sub (tendsto_id.mono_left nhdsWithin_le_nhds) | |
| · simpa using hk | |
| have h2 : Tendsto (fun h => dd1 F 0 h) (𝓝[≠] 0) (𝓝 (deriv F 0)) := by | |
| have he : (fun h => dd1 F 0 h)=slope F 0 := funext (fun h => (slope_def_field F 0 h).symm) | |
| rw [he] | |
| exact hF.hasDerivAt.tendsto_slope | |
| simpa only [dd2,sub_zero] using (h1.sub h2).div_const k | |
| lemma second_remainder_lipschitz {F : ℝ → ℝ} {I : Set ℝ} (hI : IsOpen I) (h0 : (0:ℝ)∈I) | |
| (hF : DifferentiableAt ℝ F 0) {M : ℝ} (hM : 0≤M) | |
| (hb : ∀ a∈I,∀ b∈I,∀ c∈I,∀ d∈I, | |
| a≠b → a≠c → a≠d → b≠c → b≠d → c≠d → |dd3 F a b c d|≤M) : | |
| LipschitzOnWith ⟨M,hM⟩ (fun k => (dd1 F 0 k-deriv F 0)/k) (I\{0}) := by | |
| apply LipschitzOnWith.of_dist_le_mul | |
| intro k hk l hl | |
| by_cases hkl : k=l | |
| · simp [hkl] | |
| have hk0 : k≠0 := hk.2 | |
| have hl0 : l≠0 := hl.2 | |
| rw [Real.dist_eq,Real.dist_eq] | |
| have hc := ((tendsto_dd2_left hF hk0).sub (tendsto_dd2_left hF hl0)).abs | |
| apply le_of_tendsto hc | |
| have heg : ∀ᶠ h in 𝓝[≠] (0:ℝ),h∈I ∧ h≠0 ∧ h≠k ∧ h≠l := by | |
| filter_upwards [Filter.Eventually.filter_mono nhdsWithin_le_nhds (hI.mem_nhds h0),self_mem_nhdsWithin, | |
| Filter.Eventually.filter_mono nhdsWithin_le_nhds (isOpen_ne.mem_nhds hk0.symm), | |
| Filter.Eventually.filter_mono nhdsWithin_le_nhds (isOpen_ne.mem_nhds hl0.symm)] | |
| with h hi hne hnk hnl | |
| exact ⟨hi,hne,hnk,hnl⟩ | |
| filter_upwards [heg] with h hh | |
| rw [dd2_sub_last F hh.2.1.symm hk0.symm hl0.symm hh.2.2.1 hh.2.2.2 hkl,abs_mul] | |
| calc | |
| |k-l| * |dd3 F 0 h k l| ≤ |k-l| * M := mul_le_mul_of_nonneg_left | |
| (hb 0 h0 h hh.1 k hk.1 l hl.1 hh.2.1.symm hk0.symm hl0.symm hh.2.2.1 hh.2.2.2 hkl) (abs_nonneg _) | |
| _ = _ := by change |k-l| * M = M * |k-l|; ring | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology NNReal | |
| namespace MicroscopicJamming | |
| namespace Parameter | |
| lemma twice_differentiable_of_dd_bounds {F : ℝ → ℝ} {I : Set ℝ} (hI : IsOpen I) (h0 : (0:ℝ)∈I) | |
| {M₂ M₃ : ℝ} (hM₂ : 0≤M₂) (hM₃ : 0≤M₃) | |
| (hb₂ : ∀ a∈I,∀ b∈I,∀ c∈I,a≠b → a≠c → b≠c → |dd2 F a b c|≤M₂) | |
| (hb₃ : ∀ a∈I,∀ b∈I,∀ c∈I,∀ d∈I, | |
| a≠b → a≠c → a≠d → b≠c → b≠d → c≠d → |dd3 F a b c d|≤M₃) : | |
| DifferentiableAt ℝ F 0 ∧ DifferentiableAt ℝ (deriv F) 0 := by | |
| have hd := differentiable_of_dd2_bound hI hM₂ hb₂ | |
| refine ⟨hd 0 h0,?_⟩ | |
| obtain ⟨g,hg,he⟩ := (second_remainder_lipschitz hI h0 (hd 0 h0) hM₃ hb₃).extend_real | |
| have hgm (k : ℝ) (hk : k∈I\{0}) : | |
| g k=(dd1 F 0 k-deriv F 0)/k := (he hk).symm | |
| have hgd (k : ℝ) (hk : k∈I\{0}) : DifferentiableAt ℝ g k := by | |
| have hk0 : k≠0 := hk.2 | |
| have hr : DifferentiableAt ℝ (fun k => (dd1 F 0 k-deriv F 0)/k) k := by | |
| unfold dd1 | |
| exact ((((hd k hk.1).sub_const _).div (differentiableAt_id.sub_const _) (by simpa using hk0)).sub_const _).div | |
| differentiableAt_id hk0 | |
| apply hr.congr_of_eventuallyEq | |
| filter_upwards [(hI.sdiff isClosed_singleton).mem_nhds hk] with y hy | |
| exact hgm y hy | |
| have hrepr (k : ℝ) (hk : k∈I\{0}) : F k=F 0+deriv F 0*k+g k*k^2 := by | |
| rw [hgm k hk] | |
| unfold dd1 | |
| have hk0 : k≠0 := hk.2 | |
| simp only [sub_zero] | |
| field_simp | |
| ring | |
| have hder (k : ℝ) (hk : k∈I\{0}) : | |
| deriv F k=deriv F 0+deriv g k*k^2+g k*(2*k) := by | |
| have hh := ((hasDerivAt_const k (F 0)).add ((hasDerivAt_id k).const_mul (deriv F 0))).add | |
| ((hgd k hk).hasDerivAt.mul ((hasDerivAt_id k).pow 2)) | |
| change HasDerivAt (fun y => F 0+deriv F 0*y+g y*y^2) | |
| (0+deriv F 0*1+(deriv g k*k^2+g k*(2*k^(2-1)*1))) k at hh | |
| norm_num only [Nat.reduceSub,pow_one,mul_one,zero_add] at hh | |
| have hhe : HasDerivAt F (deriv F 0+deriv g k*k^2+g k*(2*k)) k := by | |
| have ha : deriv F 0+(deriv g k*k^2+g k*(2*k))=deriv F 0+deriv g k*k^2+g k*(2*k) := by ring | |
| rw [ha] at hh | |
| apply hh.congr_of_eventuallyEq | |
| filter_upwards [(hI.sdiff isClosed_singleton).mem_nhds hk] with y hy | |
| exact hrepr y hy | |
| exact hhe.deriv | |
| have hb (k : ℝ) : |deriv g k|≤M₃ := by | |
| have hh := (norm_deriv_le_of_lipschitz hg : ‖deriv g k‖≤(⟨M₃,hM₃⟩:ℝ≥0)) | |
| change |deriv g k|≤M₃ at hh | |
| exact hh | |
| have hv : Tendsto (fun k : ℝ => deriv g k*k) (𝓝 0) (𝓝 0) := by | |
| have hbound (k : ℝ) : ‖deriv g k*k‖≤M₃*|k| := by | |
| rw [Real.norm_eq_abs,abs_mul] | |
| exact mul_le_mul_of_nonneg_right (hb k) (abs_nonneg _) | |
| have hh : Tendsto (fun k : ℝ => M₃*|k|) (𝓝 0) (𝓝 0) := by | |
| have hc := (((continuous_const : Continuous (fun _ : ℝ => M₃)).mul continuous_abs).continuousAt (x:= (0:ℝ))).tendsto | |
| change Tendsto (fun k : ℝ => M₃*|k|) (𝓝 0) (𝓝 (M₃*|0|)) at hc | |
| simpa only [abs_zero,mul_zero] using hc | |
| exact squeeze_zero_norm hbound hh | |
| have hsl : Tendsto (slope (deriv F) 0) (𝓝[≠] 0) (𝓝 (2*g 0)) := by | |
| have hh : Tendsto (fun k : ℝ => deriv g k*k+2*g k) (𝓝[≠] 0) (𝓝 (0+2*g 0)) := (hv.mono_left nhdsWithin_le_nhds).add | |
| ((hg.continuous.continuousAt.tendsto.mono_left nhdsWithin_le_nhds).const_mul 2) | |
| simp only [zero_add] at hh | |
| apply hh.congr' | |
| filter_upwards [Filter.Eventually.filter_mono nhdsWithin_le_nhds (hI.mem_nhds h0),self_mem_nhdsWithin] with k hk hk0 | |
| rw [slope_def_field,hder k ⟨hk,hk0⟩] | |
| have hkne : k≠0 := hk0 | |
| simp only [sub_zero] | |
| field_simp | |
| ring | |
| exact (hasDerivAt_iff_tendsto_slope.mpr hsl).differentiableAt | |
| end Parameter | |
| end MicroscopicJamming | |
| open Set Filter | |
| open scoped Topology | |
| namespace MicroscopicJamming | |
| open Higher Parameter | |
| lemma RankFamilyData.parameter_C2 {I : Set ℝ} {A B : ℝ → ℝ} {F : ℝ → ℝ → ℝ → ℝ} | |
| (hf : RankFamilyData I A B F) (hI : IsOpen I) (h0 : (0:ℝ)∈I) : | |
| ∀ n : ℕ,∀ t∈Icc (0:ℝ) 1,∀ x, | |
| DifferentiableAt ℝ (fun e => iteratedDeriv n (F e t) x) 0 ∧ | |
| DifferentiableAt ℝ (deriv (fun e => iteratedDeriv n (F e t) x)) 0 := by | |
| intro n t ht x | |
| obtain ⟨n₂,C₂,hC₂,hb₂⟩ := (field2_poly hf).bounds n | |
| obtain ⟨n₃,C₃,hC₃,hb₃⟩ := (field3_poly hf).bounds n | |
| apply twice_differentiable_of_dd_bounds hI h0 (show 0≤C₂*(1+|x|)^n₂ by positivity) | |
| (show 0≤C₃*(1+|x|)^n₃ by positivity) | |
| · intro a ha b hb c hc hab hac hbc | |
| let p : Nodes3 I := ⟨⟨a,b,ha,hb,hab⟩,c,hc,hac,hbc⟩ | |
| have hh := hb₂ p trivial t ht x | |
| dsimp only at hh | |
| rw [field2_jet hf.smooth p n ht x] at hh | |
| exact hh | |
| · intro a ha b hb c hc d hd hab hac had hbc hbd hcd | |
| let p : Nodes4 I := ⟨⟨⟨a,b,ha,hb,hab⟩,c,hc,hac,hbc⟩,d,hd,had,hbd,hcd⟩ | |
| have hh := hb₃ p trivial t ht x | |
| dsimp only at hh | |
| rw [field3_jet hf.smooth p n ht x] at hh | |
| exact hh | |
| theorem row_parameter : RowParameterStatement := by | |
| intro u q η A B C κ Q hQ hu hq hη hη0 hη1 | |
| obtain ⟨r,hr,F,hF,hdata⟩ := actual_parameter_family hQ hu hq hη hη0 hη1 | |
| refine ⟨r,hr,F,hF,?_⟩ | |
| exact RankFamilyData.parameter_C2 hdata isOpen_Ioo ⟨by linarith,hr⟩ | |
| end MicroscopicJamming | |
| end | |
| end OAI | |