Sign Pattern Matrices and Semirings
Sign pattern theory examines what can be said about a matrix if one knows the signs of all or some of its entries but not the exact values. Since all we know is the sign of each entry, we can write these sign patterns as matrices whose entries come from the set {+1, -1, 0, #}, where # is used for a...
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Language: | en |
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2011
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Online Access: | http://hdl.handle.net/10214/3124 |