Theory and Modern Applications
From: Continuous solutions of 3rd-order iterative equation of linear dependence
0< r 1 <1< r 2 < r 3
r 1 < r 2 <ā1< r 3 <0
0< r 3 < r 2 <1< r 1
r 3 <ā1< r 2 < r 1 <0