Contractibility and NP-completeness
Brouwer, A.E. and Veldman, H.J. (1987) Contractibility and NP-completeness. Journal of Graph Theory, 11 (1). pp. 71-79. ISSN 0364-9024
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| Abstract: | For a fixed graph H, let H-CON denote the problem of determining whether a given graph is contractible to H. The complexity of H-CON is studied for H belonging to certain classes of graphs, together covering all connected graphs of order at most 4. In particular, H-CON is NP-complete if H is a connected triangle-free graph other than a star. For each connected graph H of order at most 4 other than P4 and C4, H-CON is solvable in polynomial time. |
| Item Type: | Article |
| Copyright: | © 1987 Wiley InterScience |
| Faculty: | Electrical Engineering, Mathematics and Computer Science (EEMCS) |
| Research Group: | |
| Link to this item: | http://purl.utwente.nl/publications/70829 |
| Official URL: | http://dx.doi.org/10.1002/jgt.3190110111 |
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