Celebratio Mathematica

A. P. Calder­ón and A. Torch­in­sky: “Para­bol­ic max­im­al func­tions as­so­ci­ated with a dis­tri­bu­tion,” Adv. Math. 16 : 1 (April 1975), pp. 1–​64. MR 0417687 Zbl 0315.​46037 article

A. P. Calder­ón and A. Torch­in­sky: “Classes of dis­tri­bu­tions with para­bol­ic max­im­al func­tions in $L^p({\mathbf{R}}^n)$,” pp. 27–​38 in Func­tion­al ana­lys­is (São Paulo, Ju­ly 1974). Edi­ted by D. Guedes de Figueiredo. Lec­ture Notes in Pure and Ap­plied Math­em­at­ics 18. Dek­ker (New York), 1976. MR 0632015 Zbl 0352.​46027 incollection

A. P. Calder­ón and A. Torch­in­sky: “Para­bol­ic max­im­al func­tions as­so­ci­ated with a dis­tri­bu­tion, II,” Adv. Math. 24 : 1 (April 1977), pp. 101–​171. Ded­ic­ated to the memory of Nor­man Lev­in­son. MR 0450888 Zbl 0355.​46021 article