It is shown that if the concept of an interval solution to a system of linear interval equations given by Ratschek and Sauer is slightly modified, then only two nonlinear equations are to be solved to find a modified interval solution or to verify that no such solution exists.
@article{104406,
author = {Ji\v r\'\i\ Rohn},
title = {Interval solutions of linear interval equations},
journal = {Applications of Mathematics},
volume = {35},
year = {1990},
pages = {220-224},
zbl = {0716.65047},
mrnumber = {1052743},
language = {en},
url = {http://dml.mathdoc.fr/item/104406}
}
Rohn, Jiří. Interval solutions of linear interval equations. Applications of Mathematics, Tome 35 (1990) pp. 220-224. http://gdmltest.u-ga.fr/item/104406/
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