In this paper, some classes of differentiation basis are investigated and several positive answers to a conjecture of Zygmund on differentiation of integrals are presented.
基金the National Natural Science Foundation of China(10571156)RSDP(20030335019)+1 种基金the Natural Science Foundation of Zhejiang Province(RC97017)supported partially by the National Natural Science Foundation of China(10601046).
文摘In this paper, some classes of differentiation basis are investigated and several positive answers to a conjecture of Zygmund on differentiation of integrals are presented.
