@article{1077466959,
author = {Amir-Mo\'ez, Ali R.},
title = {Extreme properties of eigenvalues of a Hermitian
transformation and singular values of the sum and product of
linear transformations},
journal = {Duke Math. J.},
volume = {23},
number = {1},
year = {1956},
pages = { 463-476},
language = {en},
url = {http://dml.mathdoc.fr/item/1077466959}
}
Amir-Moéz, Ali R. Extreme properties of eigenvalues of a Hermitian
transformation and singular values of the sum and product of
linear transformations. Duke Math. J., Tome 23 (1956) no. 1, pp. 463-476. http://gdmltest.u-ga.fr/item/1077466959/