Order related properties of Lp spaces

Results

• Lp E p μ is an OrderedAddCommGroup when E is a NormedLatticeAddCommGroup.

TODO

• move definitions of Lp.posPart and Lp.negPart to this file, and define them as PosPart.pos and NegPart.neg given by the lattice structure.

theorem MeasureTheory.Lp.coeFn_le {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] (f g : ↥(Lp E p μ)) : ↑↑f ≤ᶠ[ae μ] ↑↑g ↔ f ≤ g

theorem MeasureTheory.Lp.coeFn_nonneg {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] (f : ↥(Lp E p μ)) : 0 ≤ᶠ[ae μ] ↑↑f ↔ 0 ≤ f

instance MeasureTheory.Lp.instAddLeftMono {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] : AddLeftMono ↥(Lp E p μ)

instance MeasureTheory.Lp.instOrderedAddCommGroup {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] : OrderedAddCommGroup ↥(Lp E p μ)

Equations

• MeasureTheory.Lp.instOrderedAddCommGroup = OrderedAddCommGroup.mk ⋯

theorem MeasureTheory.MemLp.sup {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] {f g : α → E} (hf : MemLp f p μ) (hg : MemLp g p μ) : MemLp (f ⊔ g) p μ

@[deprecated MeasureTheory.MemLp.sup (since := "2025-02-21")]

theorem MeasureTheory.Memℒp.sup {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] {f g : α → E} (hf : MemLp f p μ) (hg : MemLp g p μ) : MemLp (f ⊔ g) p μ

Alias of MeasureTheory.MemLp.sup.

theorem MeasureTheory.MemLp.inf {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] {f g : α → E} (hf : MemLp f p μ) (hg : MemLp g p μ) : MemLp (f ⊓ g) p μ

@[deprecated MeasureTheory.MemLp.inf (since := "2025-02-21")]

theorem MeasureTheory.Memℒp.inf {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] {f g : α → E} (hf : MemLp f p μ) (hg : MemLp g p μ) : MemLp (f ⊓ g) p μ

Alias of MeasureTheory.MemLp.inf.

theorem MeasureTheory.MemLp.abs {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] {f : α → E} (hf : MemLp f p μ) : MemLp |f| p μ

@[deprecated MeasureTheory.MemLp.abs (since := "2025-02-21")]

theorem MeasureTheory.Memℒp.abs {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] {f : α → E} (hf : MemLp f p μ) : MemLp |f| p μ

Alias of MeasureTheory.MemLp.abs.

instance MeasureTheory.Lp.instLattice {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] : Lattice ↥(Lp E p μ)

Equations

• MeasureTheory.Lp.instLattice = Subtype.lattice ⋯ ⋯

theorem MeasureTheory.Lp.coeFn_sup {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] (f g : ↥(Lp E p μ)) : ↑↑(f ⊔ g) =ᶠ[ae μ] ↑↑f ⊔ ↑↑g

theorem MeasureTheory.Lp.coeFn_inf {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] (f g : ↥(Lp E p μ)) : ↑↑(f ⊓ g) =ᶠ[ae μ] ↑↑f ⊓ ↑↑g

theorem MeasureTheory.Lp.coeFn_abs {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] (f : ↥(Lp E p μ)) : ↑↑|f| =ᶠ[ae μ] fun (x : α) => |↑↑f x|

noncomputable instance MeasureTheory.Lp.instNormedLatticeAddCommGroup {α : Type u_1} {E : Type u_2} {m : MeasurableSpace α} {μ : Measure α} {p : ENNReal} [NormedLatticeAddCommGroup E] [Fact (1 ≤ p)] : NormedLatticeAddCommGroup ↥(Lp E p μ)

Equations

• MeasureTheory.Lp.instNormedLatticeAddCommGroup = NormedLatticeAddCommGroup.mk ⋯