On the lower semi-continuity of the set valued metric projection

Fowzi Ahmad Sejeeni

International Journal of Mathematics and Mathematical Sciences, 1992, vol. 15, 1-9

Abstract:

The lower semi-continuity of best approximation operators from Banach lattices on to closed ideals is investigated. Also the existence of best approximation to sub-function modules of function modules is proved. The order intersection properties of cells are studied and used to prove the above results.

Date: 1992
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jijmms:374238

DOI: 10.1155/S0161171292000619

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