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A note on relatives to the Held and Karp 1-tree problem |
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| Authors: | Andreas Westerlund,Maud Gö the-Lundgren,Torbjö rn Larsson |
| Affiliation: | Department of Mathematics, Linköping University, SE-581 83 Linköping, Sweden |
| Abstract: | We study a class of graph problems which includes as special cases the Held and Karp 1-tree problem, and the minimum spanning tree problem with one degree constraint studied by Glover and Klingman. For another special case, we note a mistake in a paper by Ramesh, Yoon and Karwan. |
| Keywords: | 1-Tree problem Degree constraint Counter-example Polynomial time-complexity Vehicle routing Traveling salesman |
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