activity
20192023
most citedA direct proof of existence of weak solutions to fully anisotropic and inhomogeneous elliptic problems

1 citations · 1 across the 4 of their papers we have counts for

collaborators
Showing math.FAShow all

2 papers · 1 filter

math.FA2021

Fractional operators and their commutators on generalized Orlicz spaces

Arttu Karppinen

In this paper we examine boundedness of fractional maximal operator. The main focus is on commutators and maximal commutators on generalized Orlicz spaces for fractional maximal fu…

math.FA2021

Sharp growth conditions for boundedness of maximal function in generalized Orlicz spaces

Petteri Harjulehto, Arttu Karppinen

We study sharp growth conditions for the boundedness of the Hardy-Littlewood maximal function in the generalized Orlicz spaces. We assume that the generalized Orlicz function $ϕ(x,…