We give a counterexample to the following conjecture of Douglas D. Grant Cl]: If a positive integer t 3 2 and D is a strict digraph of order 2t such that S+(D) 3 t and S'(D)2 t, then D has an anti-directed hamiltonian cycle. Where S+(D) and 6-(D) denote the minimum indegree and outdegree, respective
A simple counterexample to a conjecture of rota
โ Scribed by J.B. Shearer
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 319 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0012-365X
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