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dc.date.accessioned 2019-12-03T18:17:15Z
dc.date.available 2019-12-03T18:17:15Z
dc.date.issued 2015
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/86713
dc.description.abstract Given two Krein spaces H and K, a (bounded) closed-range operator C:H→K and a vector y∈K, the indefinite least-squares problem consists in finding those vectors u∈H such that [Cu - y, Cu - y] = minx∈H[Cx - y, Cx - y]. The indefinite least-squares problem has been thoroughly studied before under the assumption that the range of C is a uniformly J-positive subspace of K. Along this article the range of C is only supposed to be a J-nonnegative pseudo-regular subspace of K. This work is devoted to present a description for the set of solutions of this abstract problem in terms of the family of J-normal projections onto the range of C. en
dc.format.extent 895-908 es
dc.language en es
dc.subject Indefinite least-squares es
dc.subject Krein space es
dc.subject Pseudo-regular subspace es
dc.title Indefinite least-squares problems and pseudo-regularity en
dc.type Articulo es
sedici.identifier.other doi:10.1016/j.jmaa.2015.05.015 es
sedici.identifier.other eid:2-s2.0-84930870049 es
sedici.identifier.issn 0022-247X es
sedici.creator.person Giribet, Juan Ignacio es
sedici.creator.person Maestripieri, Alejandra Laura es
sedici.creator.person Martínez Pería, Francisco Dardo es
sedici.subject.materias Ciencias Exactas es
sedici.subject.materias Matemática es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Exactas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of Mathematical Analysis and Applications es
sedici.relation.journalVolumeAndIssue vol. 430, no. 2 es
sedici.rights.sherpa * Color: green * Pre-print del autor: can * Post-print del autor: can * Versión de editor/PDF:cannot * Condiciones: >>Authors pre-print on any website, including arXiv and RePEC >>Author's post-print on author's personal website immediately >>Author's post-print on open access repository after an embargo period of between 12 months and 48 months >>Permitted deposit due to Funding Body, Institutional and Governmental policy or mandate, may be required to comply with embargo periods of 12 months to 48 months >>Author's post-print may be used to update arXiv and RepEC >>Publisher's version/PDF cannot be used >>Must link to publisher version with DOI >>Author's post-print must be released with a Creative Commons Attribution Non-Commercial No Derivatives License >>Publisher last reviewed on 03/06/2015 * Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0022-247X/es/


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)