Ji Li

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math.CA2026

On Rubio de Francia's maximal theorem

Seheon Ham, Jiwon Kah, Sanghyuk Lee +1

In his influential 1986 paper, Rubio de Francia established $L^{p}$ bounds for the maximal function generated by dilations of measures $I^¼$ whose Fourier transforms $I^¼$ sati…

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…