Bermúdez, Teresa https://orcid.org/0000-0002-4034-6060
Martinón, Antonio
Zaway, Hajer https://orcid.org/0000-0001-5286-8731
Funding for this research was provided by:
Ministerio de Ciencia e Innovación, Spain (MTM2016-75963-P)
Departamento de Análisis Matemático of Universidad de La Laguna
Le Laboratoire de Recherche Mathématiques et Applications (LR17ES11)
Article History
Received: 27 February 2019
Revised: 6 September 2019
Accepted: 12 February 2020
First Online: 2 March 2020