INVESTIGADORES
LEVIS Fabian Eduardo
artículos
Título:
Optimal subspaces in normed spaces
Autor/es:
H. H. CUENYA; F. E. LEVIS; M. D. LORENZO; C.N.RODRIGUEZ
Revista:
EAST JOURNAL ON APPROXIMATIONS
Editorial:
DARBA-EJA
Referencias:
Lugar: Sofia; Año: 2010 vol. 16 p. 193 - 207
ISSN:
1310-6236
Resumen:
In this paper, we prove existence of optimal subspaces in a normed space. We give properties of diameters of a subspace, and properties of optimal subspaces and of its deviations. Characterization and uniqueness of optimal subspaces in an Hilbert space are considered.