The number of P-vertices in a matrix with maximum nullity
Let T be a tree with n >= 2 vertices. Set 8(T) for the set of all real symmetric matrices whose graph is T. Let A is an element of S(T) and i is an element of {1, . . . , n}. We denote by A(i) the principal submatrix of A obtained after deleting the row and column i. We set m(A) (0) for the multi...
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| Format: | article |
| Language: | eng |
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2019
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| Online Access: | http://hdl.handle.net/10362/64137 |
| Country: | Portugal |
| Oai: | oai:run.unl.pt:10362/64137 |