Embeddings of local generalized Morrey spaces between weighted Lebesgue spaces

Almeida, Alexandre; Samko, Stefan

http://hdl.handle.net/10400.1/12947

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Authors

Almeida, Alexandre

Samko, Stefan

Abstract(s)

We prove that local generalized Morrey spaces are closely embedded between weighted Lebesgue spaces. We show that such embeddings are strict in all the cases under consideration by constructing counterexamples. As a consequence, continuous embeddings between generalized Morrey spaces and generalized Stummel spaces are established, as well as between Stummel classes (vanishing Stummel spaces). In particular, we obtain embeddings into a new Stummel class of functions with some vanishing property at infinity. We also partially improve a known result on the coincidence of Stummel spaces with a modification of Morrey spaces where the supremum norm is replaced by an integral L-p-norm. (C) 2017 Elsevier Ltd. All rights reserved.