Journal
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
Volume 391, Issue 15, Pages 3833-3848Publisher
ELSEVIER
DOI: 10.1016/j.physa.2012.03.004
Keywords
Close-packed dimers; Honeycomb lattice; Pfaffian orientation; Crossing orientation
Categories
Funding
- NSFC [10831001]
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Dimer statistics is a central problem in statistical physics. In this paper the enumerations of close-packed dimers of honeycomb lattices on Klein bottle, Mobius strip and cylinder are considered. By establishing a Pfaffian orientation or a crossing orientation, and then computing the determinants of the skew-symmetric matrices of the resulting orientation graphs, we obtain explicit expressions of the number of close-packed dimers of the Klein-bottle polyhex, the Mobius polyhex and the cylindrical polyhex. (C) 2012 Elsevier B.V. All rights reserved.
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