The number of unlabeled 2-dimensional posets is recursively calculated. This counting makes use of the relationship between permutations and posets of dimension two.
Asymptotic enumeration of two-dimensional posets
β Scribed by M. El-Zahar; N. W. Sauer
- Publisher
- Springer Netherlands
- Year
- 1988
- Tongue
- English
- Weight
- 271 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0167-8094
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β¦ Synopsis
In this paper we show that the number of pairwise nonisomorphic two-dimensional posets with n elements is asymptotically equivalent to =l n!. This estimate is based on a characterization, in terms of structural decomposmon, of two-d~mensmnal posets having a umque rep~*sentation as the intersection of two linear extensionsβ’ AMS subject classification (1980). 06A 10.
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