Approximate identities in variable Lp sp
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D. Cruz-Uribe SFO; A. Fiorenza
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Article
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2007
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John Wiley and Sons
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English
β 202 KB
## Abstract We give conditions for the convergence of approximate identities, both pointwise and in norm, in variable __L__ ^__p__^ spaces. We unify and extend results due to Diening [8], Samko [18] and Sharapudinov [19]. As applications, we give criteria for smooth functions to be dense in the va