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The Number of Rhombus Tilings of a Symmetric Hexagon which Contain a Fixed Rhombus on the Symmetry Axis, II

✍ Scribed by M. Fulmek; C. Krattenthaler


Book ID
102966569
Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
554 KB
Volume
21
Category
Article
ISSN
0195-6698

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✦ Synopsis


We compute the number of rhombus tilings of a hexagon with side lengths N , M, N , N , M, N , with N and M having the same parity, which contain a particular rhombus next to the center of the hexagon. The special case N = M of one of our results solves a problem posed by Propp. In the proofs, Hankel determinants featuring Bernoulli numbers play an important role.


πŸ“œ SIMILAR VOLUMES


Enumeration of Rhombus Tilings of a Hexa
✍ Ilse Fischer πŸ“‚ Article πŸ“… 2001 πŸ› Elsevier Science 🌐 English βš– 418 KB

We compute the number of rhombus tilings of a hexagon with side lengths a, b, c, a, b, c which contain the central rhombus and the number of rhombus tilings of a hexagon with side lengths a, b, c, a, b, c which contain the ``almost central'' rhombus above the centre.

The Number of Rhombus Tilings of a β€œPunc
✍ S Okada; C Krattenthaler πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 403 KB

We compute the number of all rhombus tilings of a hexagon with sides a, b q 1, c, a q 1, b, c q 1, of which the central triangle is removed, provided a, b, c , where B ␣ , ␀, β₯ is the number of plane partitions inside the ␣ = ␀ = β₯ box. The proof uses nonintersecting lattice paths and a new identit