We give detailed discussion of a procedure for determining the robust $D$-stability of a $4\times 4$ real matrix. The procedure begins from the Hurwitz stability criterion. The procedure is applied to two numerical examples.
@article{107972, author = {Serkan T. Impram and Russell Johnson and Raffaella Pavani}, title = {The $D$-stability problem for $4\times 4$ real matrices}, journal = {Archivum Mathematicum}, volume = {041}, year = {2005}, pages = {439-450}, zbl = {1122.15003}, mrnumber = {2195496}, language = {en}, url = {http://dml.mathdoc.fr/item/107972} }
Impram, Serkan T.; Johnson, Russell; Pavani, Raffaella. The $D$-stability problem for $4\times 4$ real matrices. Archivum Mathematicum, Tome 041 (2005) pp. 439-450. http://gdmltest.u-ga.fr/item/107972/
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