Interchanging two limits
The Teaching of Mathematics, VIII (2005) no. 1, p. 15
Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts
By the use of convenient metrics, the ordered set of natural numbers plus an ideal element
and the partially ordered set of all partitions of an interval plus an ideal element are
converted into metric spaces. Thus, the three different types of limit, arising in classical
analysis, are reduced to the same model of the limit of a function at a point. Then, the
theorem on interchange of iterated limits, valid under the condition that one of the iterated
limits exists and the other one exists uniformly, is used to derive a long sequence of
statements of that type that are commonly present in the courses of classical analysis. All
apparently varied conditions accompanying such statements are, then, unmasked and reduced to
one and the same: one iterated limit exists and the other one exists uniformly.
Classification :
00A35 I35
Keywords: Interchange of two limits, uniform convergence, definite integral as a limit.
Keywords: Interchange of two limits, uniform convergence, definite integral as a limit.
@article{TM2_2005_VIII_1_a1,
author = {Zoran Kadelburg and Milosav Marjanovi\'c},
title = {Interchanging two limits},
journal = {The Teaching of Mathematics},
pages = {15 },
publisher = {mathdoc},
volume = {VIII},
number = {1},
year = {2005},
language = {en},
url = {http://geodesic.mathdoc.fr/item/TM2_2005_VIII_1_a1/}
}
Zoran Kadelburg; Milosav Marjanović. Interchanging two limits. The Teaching of Mathematics, VIII (2005) no. 1, p. 15 . http://geodesic.mathdoc.fr/item/TM2_2005_VIII_1_a1/