Jaakko Sinko

activity

20232025

collaborators

3 papers

math.CA2025

Compactness of commutators of rough singular integrals

Aapo Laukkarinen, Jaakko Sinko

We study the two-weighted off-diagonal compactness of commutators of rough singular integral operators $T_{Ω}$ that are associated with a kernel $Ω \in L^{q} (S^{d - 1})$ . We esta…

math.CA2024

Fractional Bloom boundedness of commutators in spaces of homogeneous type

Zhenbing Gong, Ji Li, Jaakko Sinko

We aim to characterise boundedness of commutators $[b, T]$ of singular integrals $T$ . Boundedness is studied between weighted Lebesgue spaces $L^{p} (X)$ and $L^{q} (X)$ , $p \leq q$ , when…

math.CA2023

Weighted $L^{p} \to L^{q}$ -boundedness of commutators and paraproducts in the Bloom setting

Timo S. Hänninen, Emiel Lorist, Jaakko Sinko

As our main result, we supply the missing characterization of the $L^{p} (μ) \to L^{q} (λ)$ boundedness of the commutator of a non-degenerate Calderón--Zygmund operator $T$ and pointwise…

Compactness of commutators of rough singular integrals

Fractional Bloom boundedness of commutators in spaces of homogeneous type

Weighted Lp→Lq-boundedness of commutators and paraproducts in the Bloom setting

Weighted $L^{p} \to L^{q}$ -boundedness of commutators and paraproducts in the Bloom setting