Unrestricted space-time Riesz duality #
The compact-core pairing extends to arbitrary dual L^r classes by
continuity and density.
theorem
CKN.Leray.rieszPressureSpaceTimeComponent_duality
(r : ℝ)
(hr : 1 < r)
(q : ℝ)
(hq : 1 < q)
(hHolder : r.HolderConjugate q)
(i j : Fin 3)
(u : ↥(MeasureTheory.Lp ℝ (ENNReal.ofReal r) MeasureTheory.volume))
(v : ↥(MeasureTheory.Lp ℝ (ENNReal.ofReal q) MeasureTheory.volume))
:
∫ (z : Foundation.Parabolic.Vec3 × ℝ), ↑↑((rieszPressureSpaceTimeComponent r hr i j) u) z * ↑↑v z = ∫ (z : Foundation.Parabolic.Vec3 × ℝ), ↑↑u z * ↑↑((rieszPressureSpaceTimeComponent q hq j i) v) z
The component adjoint identity holds for every space-time L^r input,
used by lem:riesz-duality.
theorem
CKN.Leray.rieszPressureSpaceTimeClass_duality
(r : ℝ)
(hr : 1 < r)
(q : ℝ)
(hq : 1 < q)
(hHolder : r.HolderConjugate q)
(F : RieszPressureSpaceTimeTensorLp r)
(g : ↥(MeasureTheory.Lp ℝ (ENNReal.ofReal q) MeasureTheory.volume))
:
∫ (z : Foundation.Parabolic.Vec3 × ℝ), ↑↑(rieszPressureSpaceTimeClass r hr F) z * ↑↑g z = ∑ i : Fin 3,
∑ j : Fin 3, ∫ (z : Foundation.Parabolic.Vec3 × ℝ), ↑↑(F i j) z * ↑↑((rieszPressureSpaceTimeComponent q hq j i) g) z
The nine pressure components satisfy the unrestricted tensor duality in
lem:riesz-duality.