On the "three-space problem" for spaces of polynomials.

A property P of locally convex spaces is called a three-space property whenever the following implication holds: if both a closed subspace F and the corresponding quotient E/F of a locally convex space E have P then E has P as well. The authors consider properties P of the form: E has P whenever two...

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Detalles Bibliográficos
Autores: Martínez Ansemil, José María, Blasco Contreras, Fernando, Ponte Miramontes, María Del Socorro
Tipo de recurso: artículo
Fecha de publicación:1997
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/58699
Acceso en línea:https://hdl.handle.net/20.500.14352/58699
Access Level:acceso abierto
Palabra clave:517.98
Three-space problem
Spaces of polynomials
Análisis funcional y teoría de operadores
Descripción
Sumario:A property P of locally convex spaces is called a three-space property whenever the following implication holds: if both a closed subspace F and the corresponding quotient E/F of a locally convex space E have P then E has P as well. The authors consider properties P of the form: E has P whenever two "natural'' topologies coincide on the spaces of n-homogeneous polynomials on E. They consider topologies of the uniform convergence on all absolutely convex compact or bounded subsets as well as the strong topology and the Nachbin ported topology. The results obtained are mostly negative and the counterexamples are variations of the known spaces.