Geodesic
On the inertia sets of some symmetric sign patterns
Czechoslovak Mathematical Journal, Tome 56 (2006) no. 3, pp. 875-883

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A matrix whose entries consist of elements from the set $\lbrace +,-,0\rbrace $ is a sign pattern matrix. Using a linear algebra theoretical approach we generalize of some recent results due to Hall, Li and others involving the inertia of symmetric tridiagonal sign matrices.
Classification : 15A18, 15A36, 15A48
Keywords: inertia; sign pattern matrix; tridiagonal matrix 
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     author = {Fonseca, C. M. da},
     title = {On the inertia sets of some symmetric sign patterns},
     journal = {Czechoslovak Mathematical Journal},
     pages = {875--883},
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     volume = {56},
     number = {3},
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     zbl = {1164.15318},
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     url = {http://geodesic.mathdoc.fr/item/CMJ_2006__56_3_a5/}
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Fonseca, C. M. da. On the inertia sets of some symmetric sign patterns. Czechoslovak Mathematical Journal, Tome 56 (2006) no. 3, pp. 875-883. http://geodesic.mathdoc.fr/item/CMJ_2006__56_3_a5/