On the concepts of lower and upper functions
Differencialʹnye uravneniâ, Tome 16 (1980) no. 10, pp. 1750-1759
Cet article a éte moissonné depuis la source Math-Net.Ru
@article{DE_1980_16_10_a2,
author = {L. A. Lepin},
title = {On the concepts of lower and upper functions},
journal = {Differencialʹnye uravneni\^a},
pages = {1750--1759},
year = {1980},
volume = {16},
number = {10},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DE_1980_16_10_a2/}
}
L. A. Lepin. On the concepts of lower and upper functions. Differencialʹnye uravneniâ, Tome 16 (1980) no. 10, pp. 1750-1759. http://geodesic.mathdoc.fr/item/DE_1980_16_10_a2/