A (conjectural) 1/3-phenomenon for the number of rhombus tilings of a hexagon which contain a fixed rhombus

dc.creatorKrattenthaler, Christian
dc.date2001-01-01
dc.date2001-07-13
dc.date.accessioned2026-07-07T04:39:28Z
dc.date.available2026-07-07T04:39:28Z
dc.descriptionWe state, discuss, provide evidence for, and prove in special cases the conjecture that the probability that a random tiling by rhombi of a hexagon with side lengths $2n+a,2n+b,2n+c,2n+a,2n+b,2n+c$ contains the (horizontal) rhombus with coordinates $(2n+x,2n+y)$ is equal to ${1/3} + g_{a,b,c,x,y}(n) {\binom {2n}{n}}^3 / \binom {6n}{3n}$, where $g_{a,b,c,x,y}(n)$ is a rational function in $n$. Several specific instances of this "1/3-phenomenon" are made explicit.
dc.description16 pages, AmS-LaTeX, uses TeXDraw; a few typos corrected
dc.identifierhttps://arxiv.org/abs/math/0101009
dc.identifierhttp://arxiv.org/abs/math/0101009
dc.identifierin: Number Theory and Discrete Mathematics, A. K. Agarwal et al., eds., Hindustan Book Agency, New Delhi, 2002, pp. 13-30.
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/60673
dc.subjectCombinatorics
dc.subject05A15 05A19 05B45 33C20 33C45 52C20
dc.titleA (conjectural) 1/3-phenomenon for the number of rhombus tilings of a hexagon which contain a fixed rhombus
dc.typetext

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