Potential eventual positivity of sign patterns with the underlying broom graph
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DOI: 10.1016/j.ajmsc.2016.11.002
Abstract: Abstract A sign pattern is a matrix whose entries belong to the set { + , − , 0 } . An n -by- n sign pattern A is said to allow an eventually positive… read more here.
Keywords: sign patterns; sign pattern; sign; potentially eventually ... See more keywords
Nonnegative and eventually positive matrices
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DOI: 10.1016/j.laa.2016.12.036
Abstract: Abstract We characterize those eventually positive matrices A such that the sum of A and every nonnegative matrix remains eventually positive. For n ≥ 3 , we show that for every eventually positive matrix A… read more here.
Keywords: eventually positive; positive matrices; nonnegative eventually;