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arXiv 0707.0955math-phmath.MPmath.QA
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量子仿射代数的泛顶点IRF变换

Universal Vertex-IRF Transformation for Quantum Affine Algebras

Eric Buffenoir, Philippe Roche, Véronique Terras

摘要:

构造了量子动力学Yang-Baxter方程的Vertex型普适解和面型普适解之间的普适Vertex-IRF变换。这种通用的顶点IRF变换满足广义coBoundary方程,是我们以前工作的量子仿射$U_q(A^{(1)}_r)$情况下的扩展。这个解具有一个简单的高斯分解,它是利用扭曲量子Borel代数的Sevostyanov特征构造的。我们表明,这个通用的解决方案的评价表示$U_q(A_1^{(1)})$的评价给出了标准的巴克斯特之间的8顶点模型和IRF高度模型的转换。

英文摘要:

We construct a universal Vertex-IRF transformation between Vertex type universal solution and Face type universal solution of the quantum dynamical Yang-Baxter equation. This universal Vertex-IRF transformation satisfies the generalized coBoundary equation and is an extension of our previous work to the quantum affine $U_q(A^{(1)}_r)$ case. This solution has a simple Gauss decomposition which is constructed using Sevostyanov's characters of twisted quantum Borel algebras. We show that the evaluation of this universal solution in the evaluation representation of $U_q(A_1^{(1)})$ gives the standard Baxter's transformation between the 8-Vertex model and the IRF height model.

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