@article{01924299,
title = {Variational characterizations of the sign-real and the sign-complex spectral radius.},
journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
volume = {9},
year = {2002},
pages = {112-117},
zbl = {1046.15025},
language = {en},
url = {http://dml.mathdoc.fr/item/01924299}
}
Rump, Siegfried M. Variational characterizations of the sign-real and the sign-complex spectral radius.. ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 9 (2002) pp. 112-117. http://gdmltest.u-ga.fr/item/01924299/