Theorems · Theorem · abstract harmonic analysis

MeasureTheory.convolutionExistsAt_iff_integrable_swap

∀ {𝕜 : Type u𝕜} {G : Type uG} {E : Type uE} {E' : Type uE'} {F : Type uF} [inst : NormedAddCommGroup E]
  [inst_1 : NormedAddCommGroup E'] [inst_2 : NormedAddCommGroup F] {f : G → E} {g : G → E'} {x : G}
  [inst_3 : NontriviallyNormedField 𝕜] [inst_4 : NormedSpace 𝕜 E] [inst_5 : NormedSpace 𝕜 E'] [inst_6 : NormedSpace 𝕜 F]
  {L : E →L[𝕜] E' →L[𝕜] F} [inst_7 : MeasurableSpace G] {μ : MeasureTheory.Measure G} [inst_8 : AddCommGroup G]
  [MeasurableNeg G] [μ.IsAddLeftInvariant] [MeasurableAdd G] [μ.IsNegInvariant],
  MeasureTheory.ConvolutionExistsAt f g x L μ ↔ MeasureTheory.Integrable (fun t => (L (f (x - t))) (g t)) μ

Defined in

Mathlib.Analysis.Convolution

Cited by

0 results in Mathlib

Foundations

Depth 214 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

NormedAddCommGroupNormedAddCommGroupNormedAddCommGroupNontriviallyNormedFieldNormedSpaceNormedSpaceNormedSpaceMeasurableSpaceAddCommGroupMeasurableNegMeasureTheory.Measure.IsAddLeftInvariantMeasurableAddMeasureTheory.Measure.IsNegInvariant