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Published online by Cambridge University Press: 30 March 2012
Let μ be a Borel measure on ℝ. The paper contains the proofs of the estimatesand
Here A is a subset of ℝ, f is a μ-locally integrable function,
μ is the uncentred maximal operator with respect to μ and cp,q, and Cp,q are finite constants depending only on the parameters indicated. In the case when μ is the Lebesgue measure, the optimal choices for cp,q and Cp,q are determined. As an application, we present some related tight bounds for the strong maximal operator on ℝn with respect to a general product measure.