@article{oai:teapot.lib.ocha.ac.jp:00034632,
 author = {Watanabe, Hisako},
 issue = {2},
 journal = {お茶の水女子大學自然科學報告},
 month = {Jan},
 note = {application/pdf, 紀要論文, Let M_α be the fractional maximal operator in a quasi-metric space X. We will prove that M_α is bounded from the Choquet space L^p (H^η_∞) with respect to the η-Hausdorff capacity H^η_∞ to the Choquet space L^<q, p> (H^δ_∞) of Lorentz type with respect to the δ-Hausdorff capacity for some δ. To prove it, we use the Choquet integrals with respect to Hausdorff capacities and the dyadic balls introduced by E. Sawyer and R.L. Wheeden.},
 pages = {21--31},
 title = {Estimates of fractional maximal functions in a quasi-metric space},
 volume = {56},
 year = {2006}
}