Admissibility and Weyl-orbit conjecture for soliton contents

Let B=Br1,l1BrL,lLB=B^{r_1,l_1}\otimes\cdots\otimes B^{r_L,l_L} be a tensor product of crystals of type AnA_n, and let m=(mj(a))m=(m^{(a)}_j) be a soliton content. Define

P(m)={pBp is evolvable, Ej(a)(p)=k1min(j,k)mk(a)},P(m)=\{p\in B\mid p\text{ is evolvable},\ E^{(a)}_j(p)=\sum_{k\geq1}\min(j,k)m^{(a)}_k\},

let pj(a)p^{(a)}_j be the corresponding vacancy numbers, let H={(a,j)1an, jZ1, mj(a)>0}H=\{(a,j)\mid1\leq a\leq n,\ j\in\mathbb Z_{\geq1},\ m^{(a)}_j>0\}, and let λ(m)=a=1np(a)Λa\lambda(m)=\sum_{a=1}^n p^{(a)}_\infty\Lambda_a. Admissibility and Weyl-orbit conjecture. One has

P(m)if and only ifpj(a)0for all (a,j)H,P(m)\neq\emptyset\quad\text{if and only if}\quad p^{(a)}_j\geq0\quad\text{for all }(a,j)\in H,

and

{wtppP(m)}=Wλ(m),\{\operatorname{wt}p\mid p\in P(m)\}=W\lambda(m),

where WW is the Weyl group of AnA_n. This predicts both the vacancy-number criterion for nonemptiness and the exact Weyl-group orbit of the weights of the corresponding states. The supplied text gives no resolution status.

Sources & referencesView supporting material

Primary source

Atsuo Kuniba and Akira Takenouchi, “Periodic cellular automata and Bethe ansatz”, arXiv:math-ph/0511013 (2006).

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