Extension of the best approximation operator in Orlicz spaces and weak-type inequalities

We consider an extension of the best approximation operator from an Orlicz space L φ to the space L φ′, where φ′ denotes the derivative of φ, and we prove a weak-type inequality in this space. Further, we obtain some strong inequalities for suitable L ψ spaces.

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Bibliographic Details
Main Authors: Sergio Favier, Felipe Zò
Format: Article
Language:English
Published: Wiley 2001-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/S1085337501000446
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