50 citations · 397 across the 45 of their papers we have counts for
48 papers
Zygmund dilations: bilinear analysis and commutator estimates
Emil Airta, Kangwei Li, Henri Martikainen
We develop both bilinear theory and commutator estimates in the context of entangled dilations, specifically Zygmund dilations $(x_1, x_2, x_3) \mapsto (δ_1 x_1, δ_2 x_2, δ_1 δ_2 x…
Upper endpoint estimates and extrapolation for commutators
Kangwei Li, Sheldy Ombrosi, Israel P. Rivera-Ríos
In this note we revisit the upper endpoint estimates for commutators following the line by Harboure, Segovia and Torrea. Relying upon the suitable BMO subspace suited for the commu…
The -to- Compactness of Commutators with
Tuomas Hytönen, Kangwei Li, Jin Tao +1
Let , , and be a non-degenerate Calderón--Zygmund operator. We show that the commutator is compact from to…
Exotic Calderón-Zygmund operators
Tuomas Hytönen, Kangwei Li, Henri Martikainen +1
We study singular integral operators with kernels that are more singular than standard Calderón-Zygmund kernels, but less singular than bi-parameter product Calderón-Zygmund kernel…
Multiresolution analysis and Zygmund dilations
Tuomas Hytönen, Kangwei Li, Henri Martikainen +1
Zygmund dilations are a group of dilations lying in between the standard product theory and the one-parameter setting - in $\mathbb{R}^3 = \mathbb{R} \times \mathbb{R} \times \math…
Two-weight inequalities for multilinear commutators in product spaces
Emil Airta, Kangwei Li, Henri Martikainen
This note is devoted to establishing two-weight estimates for commutators of singular integrals. We combine multilinearity with product spaces. A new type of two-weight extrapolati…