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Singular maximal functions and Radon transforms near L^1
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math.CA
keywords
functionsmaximalsingularinequalityradontransformstypeweak
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abstract
We show that some singular maximal functions and singular Radon transforms satisfy a weak type $L\log\log L$ inequality. Examples include the maximal function and Hilbert transform associated to averages along a parabola. The weak type inequality yields pointwise convergence results for functions which are locally in $L\log\log L$.
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