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On the null-spaces of acyclic and unicyclic singular graphs |
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| Authors: | Milan Nath |
| Affiliation: | a Department of Mathematics, Handique Girls’ College, Guwahati 781001, India b Department of Mathematics, IIT Guwahati, Guwahati, 781039, India |
| Abstract: | For acyclic and unicyclic graphs we determine a necessary and sufficient condition for a graph G to be singular. Further, it is shown that this characterization can be used to construct a basis for the null-space of G. |
| Keywords: | 05C05 05C50 15A18 |
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