Spectrum preserving lower triangular completions -- the nonnegative nilpotent case.
Berman, Abraham ; Krupnik, Mark
ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 2 (1997), p. 9-16 / Harvested from The Electronic Library of Mathematics
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Publié le : 1997-01-01
EUDML-ID : urn:eudml:doc:119414 
@article{01122732,
     title = {Spectrum preserving lower triangular completions -- the nonnegative nilpotent case.},
     journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
     volume = {2},
     year = {1997},
     pages = {9-16},
     zbl = {0889.15008},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01122732}
}

Berman, Abraham; Krupnik, Mark. Spectrum preserving lower triangular completions -- the nonnegative nilpotent case.. ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 2 (1997) pp. 9-16. http://gdmltest.u-ga.fr/item/01122732/