activity
20072023
most citedIsomorphic and isometric structure of the optimal domains for Hardy-type operators

4 citations · 13 across the 17 of their papers we have counts for

collaborators

19 papers

math.FA2023

A new result on boundedness of the Riesz potential in central Morrey-Orlicz spaces

Evgeniya Burtseva, Lech Maligranda

We improve our results on boundedness of the Riesz potential in the central Morrey-Orlicz spaces and the corresponding weak-type version. We also present two new properties of the…

math.FA2021

Boundedness of the Riesz potential in central Morrey--Orlicz spaces

Evgeniya Burtseva, Lech Maligranda, Katsuo Matsuoka

Boundedness of the maximal function and the Caldeón-Zygmund singular integrals in central Morrey-Orlicz spaces were proved in papers by the second and third authors. The weak-type…

math.FA2019★ 1 cited

Weakly compact sets and weakly compact pointwise multipliers in Banach function lattices

Karol Lesnik, Lech Maligranda, Jakub Tomaszewski

We prove that the class of Banach function lattices in which all relatively weakly compact sets are equi-integrable sets (i.e. spaces satisfying the Dunford-Pettis criterion) coinc…

math.FA2019★ 4 cited

Isomorphic and isometric structure of the optimal domains for Hardy-type operators

Tomasz Kiwerski, Paweł Kolwicz, Lech Maligranda

We investigate structure of the optimal domains for the Hardy-type operators including, for example, the classical Cesàro, Copson and Volterra operators as well as for some of thei…

math.FA2018

and are not isomorphic for all ,

Sergey Astashkin, Lech Maligranda

We prove that if , then the spaces and are isomorphic if and only if . In particular, and $L_2 \cap L_{\…

math.FA2018

Symmetrization, factorization and arithmetic of quasi-Banach function spaces

Pawel Kolwicz, Karol Lesnik, Lech Maligranda

We investigate relations between symmetrizations of quasi-Banach function spaces and constructions such as Calderon-Lozanovskii spaces, pointwise product spaces and pointwise multi…