Positive eigenvalues and two-letter generalized words.
Hillar, C. ; Johnson, C.R. ; Spitkovsky, I.M.
ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 9 (2002), p. 21-26 / Harvested from The Electronic Library of Mathematics
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Publié le : 2002-01-01
EUDML-ID : urn:eudml:doc:122134 
@article{01716192,
     title = {Positive eigenvalues and two-letter generalized words.},
     journal = {ELA. The Electronic Journal of Linear Algebra [electronic only]},
     volume = {9},
     year = {2002},
     pages = {21-26},
     zbl = {0997.15009},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01716192}
}

Hillar, C.; Johnson, C.R.; Spitkovsky, I.M. Positive eigenvalues and two-letter generalized words.. ELA. The Electronic Journal of Linear Algebra [electronic only], Tome 9 (2002) pp. 21-26. http://gdmltest.u-ga.fr/item/01716192/