The perturbation classes problem for subprojective and superprojective Banach spaces

González Ortiz, Manuel; Pello García, Javier; Salas-Brown, M.

doi:10.1016/j.jmaa.2020.124191

dc.contributor.author	González Ortiz, Manuel
dc.contributor.author	Pello García, Javier
dc.contributor.author	Salas-Brown, M.
dc.contributor.other	Universidad de Cantabria	es_ES
dc.date.accessioned	2024-03-22T18:17:28Z
dc.date.available	2024-03-22T18:17:28Z
dc.date.issued	2020-09
dc.identifier.issn	0022-247X
dc.identifier.issn	1096-0813
dc.identifier.other	MTM2016-76958
dc.identifier.uri	https://hdl.handle.net/10902/32434
dc.description.abstract	We show that the perturbation class for the upper semi-Fredholm operators between two Banach spaces X and Y coincides with the strictly singular operators when X is subprojective and that the perturbation class for the lower semi-Fredholm operators coincides with the strictly cosingular operators when Y is superprojective. Similar results were previously obtained under stronger conditions for X and Y.	es_ES
dc.format.extent	6 p.	es_ES
dc.language.iso	eng	es_ES
dc.publisher	Academic Press Inc.	es_ES
dc.rights	© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license	es_ES
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.source	Journal of Mathematical Analysis and Applications, 2021, 489 (2), 124191	es_ES
dc.title	The perturbation classes problem for subprojective and superprojective Banach spaces	es_ES
dc.type	info:eu-repo/semantics/article	es_ES
dc.relation.publisherVersion	https://doi.org/10.1016/j.jmaa.2020.124191	es_ES
dc.rights.accessRights	openAccess	es_ES
dc.identifier.DOI	10.1016/j.jmaa.2020.124191
dc.type.version	acceptedVersion	es_ES