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The Drinfeld–Kohno theorem for the superalgebra $${\mathfrak {gl}}(1|1)$$ gl ( 1 | 1 )
Letters in Mathematical Physics ( IF 1.3 ) Pub Date : 2021-05-25 , DOI: 10.1007/s11005-021-01412-2
A. Babichenko

We revisit the derivation of Knizhnik–Zamolodchikov equations in the case of non-semisimple categories of modules of a superalgebra in the case of the generic affine level and representations parameters. A proof of existence of asymptotic solutions and their properties for the superalgebra \({\mathfrak {gl}}(1|1)\) gives a basis for the proof of existence of associator which satisfy braided tensor categories requirements. Braided tensor category structure of \(U_h({\mathfrak {gl}}(1|1))\) quantum algebra is calculated, and the tensor product ring is shown to be isomorphic to \({\mathfrak {gl}}(1|1)\) ring, for the same generic relations between the level and parameters of modules. We review the proof of Drinfeld–Kohno theorem for non-semisimple category of modules suggested by Geer (Adv Math 207:1–38, 2006) and show that it remains valid for the superalgebra \({\mathfrak {gl}}(1|1)\). Examples of logarithmic solutions of KZ equations are also presented.



中文翻译:

超代数$$ {\ mathfrak {gl}}(1 | 1)$$ gl(1 | 1)的Drinfeld–Kohno定理

在通用仿射级和表示参数的情况下,我们在超级代数的模块的非半简单类别的情况下,重新研究Knizhnik–Zamolodchikov方程的推导。证明超代数\({\ mathfrak {gl}}(1 | 1)\)的渐近解及其性质,为满足编织张量类别要求的关联子的存在提供了依据。计算\(U_h({\ mathfrak {gl}}(1 | 1))\)量子代数的编织张量类别结构,并且张量积环与\({\ mathfrak {gl}}( 1 | 1)\)环,用于模块的级别和参数之间的相同通用关系。我们回顾了Geer建议的非半简单模块类别的Drinfeld–Kohno定理的证明(高级数学207:1–38,2006),并表明它对于超代数\({\ mathfrak {gl}}(1 | 1)\)。还给出了KZ方程的对数解的示例。

更新日期:2021-05-25
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