Geodesic
On the parametrization of classes of normal Hankel matrices
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 51 (2011) no. 11, pp. 1939-1951 
V. N. Chugunov. On the parametrization of classes of normal Hankel matrices. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 51 (2011) no. 11, pp. 1939-1951. http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_11_a0/
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     author = {V. N. Chugunov},
     title = {On the parametrization of classes of normal {Hankel} matrices},
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     url = {http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_11_a0/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

The normal Hankel problem is to characterize matrices that are simultaneously normal and Hankel. It is shown that the descriptions of all classes of normal Hankel matrices can be regarded as constructive procedures. A parametrization of the available classes is performed; that is, a set of parameters is proposed whose values allow one to uniquely determine a matrix belonging to this class.

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