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math.FA2019

Decompositions with atoms and molecules for variable exponent Triebel-Lizorkin-Morrey spaces

António Caetano, Henning Kempka

We continue the study of the variable exponent Morreyfied Triebel-Lizorkin spaces introduced in a previous paper. Here we give characterizations by means of atoms and molecules. We…

math.FA2018

Variable exponent Triebel-Lizorkin-Morrey spaces

António Caetano, Henning Kempka

We introduce variable exponent versions of Morreyfied Triebel-Lizorkin spaces. To that end, we prove an important convolution inequality which is a replacement for the Hardy-Little…

math.FA2018

Variable exponent Besov-Morrey spaces

Alexandre Almeida, António Caetano

In this paper we introduce Besov-Morrey spaces with all indices variable and study some fundamental properties. This includes a description in terms of Peetre maximal functions and…

math.FA2012

On generalized Besov and Triebel-Lizorkin spaces of regular distributions

António Caetano, Hans-Gerd Leopold

We establish conditions on the parameters which are both necessary and sufficient in order that Besov and Triebel-Lizorkin spaces of generalized smoothness contain only regular dis…

math.FA2010

On the Hausdorff dimension of continuous functions belonging to Hölder and Besov spaces on fractal d-sets

António Caetano, Abel Carvalho

The Hausdorff dimension of the graphs of the functions in Hölder and Besov spaces (in this case with integrability p \geq 1) on fractal d-sets is studied. Denoting by s \in (0,1] t…