Improved initialization of the accelerated and robust QR-like polynomial root-finding.
Inclusion of the roots of a polynomial based on Gerschgorin's theorem.
Increase of iteration's order.
Interval solutions of linear interval equations
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.
Itérations chaotiques série-parallèle pour des équations non-linéaires de point fixe