Strict Singularity: A Lattice Approach

Given a Banach lattice E and a Banach space Y  we say that a bounded linear operator T : E → Y  is lattice strictly singular (disjointly strictly singular) if it fails to be invertible on any infinite-dimensional sublattice of E (on the span of any pairwise disjoint sequence in E). This is a survey...

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Detalles Bibliográficos
Autores: Flores, Julio, Hernández, Francisco L., Tradacete, Pedro
Tipo de recurso: otro
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/204188
Acceso en línea:http://hdl.handle.net/10261/204188
Access Level:acceso abierto
Palabra clave:Disjointly strictly singular operator
Lattice strictly singular operator
Banach lattice
Unconditional basic sequence
Descripción
Sumario:Given a Banach lattice E and a Banach space Y  we say that a bounded linear operator T : E → Y  is lattice strictly singular (disjointly strictly singular) if it fails to be invertible on any infinite-dimensional sublattice of E (on the span of any pairwise disjoint sequence in E). This is a survey on the existing answers up to the present day to the following questions: Is every lattice strictly singular operator also disjointly strictly singular? Do lattice strictly singular operators have a vector space structure?