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arXiv 1006.2145math-phmath.MPmath.QAnlin.SI
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缠绕Yang-Baxter映射与可积格

Entwining Yang-Baxter maps and integrable lattices

Theodoros E. Kouloukas, Vassilios G. Papageorgiou

摘要:

本文提出了Yang-Baxter(YB)映射系统(或纠缠YB结构的集合论类比)。他们承认零曲率表示与谱参数依赖Lax三元组L1,L2,L3来自辛叶2 × 2二项式矩阵配备Sklyanin括号。Lax三元组的唯一分解条件暗示了这些映射的三维相容性。当L_1 = L_2 = L_3时,这一性质产生自理论量子Yang-Baxter方程,即YB映射性质。通过考虑周期性的“楼梯”的初始值问题的四边形格,这些映射产生多维可积映射保持相应的monodromy矩阵的频谱。

英文摘要:

Yang-Baxter (YB) map systems (or set-theoretic analoga of entwining YB structures) are presented. They admit zero curvature representations with spectral parameter depended Lax triples L1, L2, L3 derived from symplectic leaves of 2 x 2 binomial matrices equipped with the Sklyanin bracket. A unique factorization condition of the Lax triple implies a 3-dimensional compatibility property of these maps. In case L1 = L2 = L3 this property yields the se--theoretic quantum Yang-Baxter equation, i.e. the YB map property. By considering periodic 'staircase' initial value problems on quadrilateral lattices, these maps give rise to multidimensional integrable mappings which preserve the spectrum of the corresponding monodromy matrix.

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