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Perfect matchings in hexagonal systems |
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| Authors: | Zhang Fu-ji Chen Rong-si Guo Xiao-fong |
| Institution: | (1) Department of Mathematics, Xinjiang University, Urumchi, Xinjiang, People's Republic of China |
| Abstract: | This paper deals with perfect matchings in hexagonal systems. Counterexamples are given to Sachs's conjecture in this field. A necessary and sufficient condition for a hexagonal system to have a perfect matching is obtained. |
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