The number of order-preserving maps between fences and crowns |
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Authors: | Jonathan David Farley |
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Affiliation: | (1) Mathematical Institute, University of Oxford, 24-29 St. Giles', OX1 3LB Oxford, UK |
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Abstract: | ![]() We compute the number of order-preserving and -reversing maps between posets in the class of fences (zig-zags) and crowns (cycles). |
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Keywords: | 06A07 05A15 05C30 11B39 05C50 05C38 |
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