Avancées concernant les R-matrices et leurs applications (d’après Maulik-Okounkov, Kang-Kashiwara-Kim-Oh, ...)

Avancées concernant les R-matrices et leurs applications (d’après Maulik-Okounkov, Kang-Kashiwara-Kim-Oh, ...)
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最新进展涉及 R 矩阵和应用程序(d’après Maulik-Okounkov、Kang-Kashiwara-Kim-Oh,...)

DOI:
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发表时间:
2017
期刊:
Astérisque
影响因子:
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通讯作者:
David Hernandez
David Hernandez
中科院分区:
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文献类型:
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作者:
David Hernandez

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R 矩阵是 Yang-Baxter 方程的解。在量子群论的起源中,它们可以被解释为交织算子。最近在不同方向上独立取得了进展。 Maulik-Okounkov 使用辛几何中的新工具(稳定包络)给出了 R 矩阵的几何方法。 Kang-Kashiwara-Kim-Oh 用 R 矩阵关键性地证明了簇代数分类的猜想。最终,对从 R 矩阵获得的传递矩阵的作用有了更好的理解,从而证明了有关相应量子可积系统的几个猜想。
R-matrices are the solutions of the Yang-Baxter equation. At the origin of the quantum group theory, they may be interpreted as intertwining operators. Recent advances have been made independently in different directions. Maulik-Okounkov have given a geometric approach to R-matrices with new tools in symplectic geometry, the stable envelopes. Kang-Kashiwara-Kim-Oh proved a conjecture on the categorification of cluster algebras by using R-matrices in a crucial way. Eventually, a better understanding of the action of transfer-matrices obtained from R-matrices led to the proof of several conjectures about the corresponding quantum integrable systems.