Korovkin theory for vector-valued functions on a locally compact space
- Autores: Walter Roth
- Localización: Journal of approximation theory, ISSN 0021-9045, Vol. 176, Nº 1, 2013, págs. 23-41
- Idioma: inglés
- DOI: 10.1016/j.jat.2013.09.003
- Enlaces
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Resumen
We consider ordered spaces of continuous vector-valued functions on a locally compact Hausdorff space, endowed with appropriate locally convex topologies. Using suitable sets of such functions as test systems a Korovkin type approximation theorem for equicontinuous nets of positive operators is established. As in the classical theory, the Korovkin closure is characterized both through envelopes of functions and through measure theoretical conditions.
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