RT Journal Article T1 On the "three-space problem" for spaces of polynomials. A1 Martínez Ansemil, José María A1 Blasco Contreras, Fernando A1 Ponte Miramontes, María Del Socorro AB 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. PB Università del Salento SN 1123-2536 YR 1997 FD 1997 LK https://hdl.handle.net/20.500.14352/58699 UL https://hdl.handle.net/20.500.14352/58699 LA eng NO Proceedings of the Second International Workshop on Functional Analysis (Trier, 1997) NO Universidad Complutense de Madrid NO Dirección General de Enseñanza Superior (España) DS Docta Complutense RD 6 abr 2025