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fpvandoorn/carleson
Source indexedlemma · leanprover/lean4:v4.32.0

MeasureTheory.StronglyMeasurable.adjointCarleson

Carleson.Operators · Carleson/Operators.lean:240 to 249

Mathematical statement

Exact Lean statement

@[fun_prop]
lemma StronglyMeasurable.adjointCarleson (hf : StronglyMeasurable f) :
    StronglyMeasurable (adjointCarleson p f)

Complete declaration

Lean source

Canonical source
Full Lean sourceLean 4
@[fun_prop]lemma StronglyMeasurable.adjointCarleson (hf : StronglyMeasurable f) :    StronglyMeasurable (adjointCarleson p f) := by  refine .integral_prod_right'    (f := fun z  conj (Ks (𝔰 p) z.2 z.1) * exp (Complex.I * (Q z.2 z.2 - Q z.2 z.1)) * f z.2) ?_  refine .mul (.mul ?_ ?_) (by fun_prop)  · exact Complex.continuous_conj.comp_stronglyMeasurable (stronglyMeasurable_Ks.prod_swap)  · refine Complex.continuous_exp.comp_stronglyMeasurable (.const_mul (.sub ?_ ?_) _)    · exact Measurable.stronglyMeasurable (by fun_prop)    · exact continuous_ofReal.comp_stronglyMeasurable stronglyMeasurable_Q₂.prod_swap