The rank of the difference of similar matrices
Portugaliae mathematica, Tome 46 (1989) no. 2, pp. 177-187
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Marques de Sá, Eduardo. The rank of the difference of similar matrices. Portugaliae mathematica, Tome 46 (1989) no. 2, pp. 177-187. http://geodesic.mathdoc.fr/item/PORMA_1989__46_2_115660/
@article{PORMA_1989__46_2_115660,
author = {Marques de S\'a, Eduardo},
title = {The rank of the difference of similar matrices},
journal = {Portugaliae mathematica},
pages = {177--187},
year = {1989},
volume = {46},
number = {2},
mrnumber = {1020965},
zbl = {0682.15002},
language = {en},
url = {http://geodesic.mathdoc.fr/item/PORMA_1989__46_2_115660/}
}