Generalized derivatives and integrals of the Cezaro-Perron type. I / *A. V. Dergachev.* // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2014. № 2. P. 14-25
[Moscow Univ. Math. Bulletin. Vol. 72, N 2, 2017. P. 0].

Several equivalent definitions of Cesaro *C _{k}*-derivative and

*C*-integral are shown to behave better than the original definition by Burkill in certain cases. For instance, a certain descriptive characterisation of Cesaro-Perron major and minor functions is obtained, and relations between Cesaro upper and lower derivatives and approximate derivatives of a function are established.

_{k}P
*Key words*:
Cesaro derivatives, Cesaro-Perron integral, approximate derivatives, VBG functions.