A Local Estimate for the Maximal Function in Lebesgue Spaces with EXP-Type Exponents
Keyword(s):
It is proven that if1≤p(·)<∞in a bounded domainΩ⊂Rnand ifp(·)∈EXPa(Ω)for somea>0, then givenf∈Lp(·)(Ω), the Hardy-Littlewood maximal function off,Mf, is such thatp(·)log(Mf)∈EXPa/(a+1)(Ω). Becausea/(a+1)<1, the thesis is slightly weaker than(Mf)λp(·)∈L1(Ω)for someλ>0. The assumption thatp(·)∈EXPa(Ω)for somea>0is proven to be optimal in the framework of the Orlicz spaces to obtainp(·)log(Mf)in the same class of spaces.
2020 ◽
Vol 12
(2)
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pp. 90-111
2005 ◽
Vol 129
(8)
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pp. 657-700
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2011 ◽
Vol 363
(04)
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pp. 1699-1699
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2013 ◽
Vol 11
(03)
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pp. 1350005
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