Lineability and modes of convergence

In this paper we look for the existence of large linear and algebraic structures of sequences of measurable functions with different modes of convergence. Concretely, the algebraic size of the family of sequences that are convergent in measure but not a.e. pointwise, uniformly but not pointwise conv...

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Bibliographic Details
Authors: Calderón Moreno, María del Carmen, Gerlach Mena, Pablo José, Prado Bassas, José Antonio
Format: article
Status:Versión enviada para evaluación y publicación
Publication Date:2020
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/92784
Online Access:https://hdl.handle.net/11441/92784
https://doi.org/10.1007/s13398-019-00743-z
Access Level:Open access
Keyword:Lineability
Algebrability
Uniform convergence
Convergence in measure
Pointwise convergence
Convergence in L 1 -norm
Description
Summary:In this paper we look for the existence of large linear and algebraic structures of sequences of measurable functions with different modes of convergence. Concretely, the algebraic size of the family of sequences that are convergent in measure but not a.e. pointwise, uniformly but not pointwise convergent, and uniformly convergent but not in L1-norm, are analyzed. These findings extend and complement a number of earlier results by several authors.