activity
20142023
most citedOperator-valued dyadic shifts and the T(1) theorem

15 citations · 45 across the 7 of their papers we have counts for

collaborators

7 papers

math.CA2023

Weighted -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 boundedness of the commutator of a non-degenerate Calderón--Zygmund operator and pointwise…

math.FA2021★ 1 cited

A variational proof of a disentanglement theorem for multilinear norm inequalities

Anthony Carbery, Timo S. Hänninen, Stefán Ingi Valdimarsson

The basic disentanglement theorem established by the present authors states that estimates on a weighted geometric mean over (convex) families of functions can be disentangled into…

math.FA2020★ 2 cited

Disentanglement, Multilinear Duality and Factorisation for non-positive operators

Anthony Carbery, Timo S. Hänninen, Stefán Ingi Valdimarsson

In previous work we established a multilinear duality and factorisation theory for norm inequalities for pointwise weighted geometric means of positive linear operators defined on…

math.CA2017★ 12 cited

Sparse domination for the lattice Hardy-Littlewood maximal operator

Timo S. Hänninen, Emiel Lorist

We study the domination of the lattice Hardy--Littlewood maximal operator by sparse operators in the setting of general Banach lattices. We prove that the admissible exponents of t…

math.CA2014★ 12 cited

Two-weight - bounds for positive dyadic operators: unified approach to and

Timo S. Hänninen, Tuomas P. Hytönen, Kangwei Li

We characterize the boundedness of positive dyadic operators of the form and the $L^{p_1}(σ_1)…

math.CA2014★ 15 cited

Operator-valued dyadic shifts and the T(1) theorem

Timo S. Hänninen, Tuomas P. Hytönen

In this paper we extend dyadic shifts and the dyadic representation theorem to an operator-valued setting: We first define operator-valued dyadic shifts and prove that they are bou…

math.CA2014★ 3 cited

Two weight inequality for vector-valued positive dyadic operators by parallel stopping cubes

Timo S. Hänninen

We study the vector-valued positive dyadic operator \[T_λ(fσ):=\sum_{Q\in\mathcal{D}} λ_Q \int_Q f \mathrm{d}σ1_Q,\] where the coefficients are p…