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20112026
most citedCompactness in quasi-Banach function spaces and applications to compact embeddings of Besov-type spaces

15 citations · 87 across the 48 of their papers we have counts for

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50 papers

math.FA2026

A solution to a conjecture on the norm of the Copson operator minus the Identity for monotone sequences

Achraf Ben Said, Amiran Gogatishvili

We investigate the operator distance between the Identity and the Copson operator on the cone of nonnegative, nonincreasing sequences within the Lebesgue sequence spaces $\ell^p(\m…

math.FA2026

Compact sets in Banach lattices over spaces of homogeneous type

Ayşenur Aydoğdu, Amiran Gogatishvili, Yoshihiro Sawano +1

We prove a Kolmogorov--Riesz compactness theorem for Banach lattices over spaces of homogeneous type. Especially, we consider the one for . Our characterization is formulated…

math.AP2026

On Weighted Local Morrey-type and Complementary Local Morrey-Type Spaces

Amiran Gogatishvili, Yoshihiro Sawano, Tuğçe Ünver

In this paper, we establish necessary and sufficient conditions for continuous embeddings between weighted local Morrey-type spaces and weighted complementary local Morrey-type spa…

math.AP2026

The Hardy averaging operator between Orlicz spaces and a new gauge functional characterizing a given Orlicz space

Amiran Gogatishvili, Ron Kerman, Susanna Spektor

We prove that the largest Orlicz space into which the Hardy averaging operator maps coincides with the largest rearrangement-invariant (r.i.) space mapping into that space; in othe…

math.FA2025

Interpolation of classical Lorentz spaces measuring oscillation

Amiran Gogatishvili, Julio S. Neves, Luboš Pick +1

We obtain an explicit characterization of the -functional of a pair of weighted classical Lorentz spaces of type . We develop a method for obtaining such characterization bas…

math.FA2025

The Persson--Stepanov theorem revisited

Amiran Gogatishvili, Luboš Pick, Hana Turčinová +1

We develop a new proof of the result of L.-E.~Persson and V.D.~Stepanov \cite[Theorems 1 and 3]{Per:02}, which provides a characterization of a Hardy integral inequality involving…