On the Double of the Hall Algebra of a Quiver

On the Double of the Hall Algebra of a Quiver
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DOI:
10.1006/jabr.1999.7958
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发表时间:
1999-11
期刊:
影响因子:
0.9
通讯作者:
Bert Sevenhant;M. Bergh
Bert Sevenhant;M. Bergh
中科院分区:
数学3区
文献类型:
--
作者:
Bert Sevenhant;M. Bergh

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摘要我们证明了在一个带扭曲的Hall代数的二重上定义反射同构是可能的。将这些反射与傅里叶变换相结合,得到了Lusztig辫子群作用在量子包络代数上的另一种构造。
Abstract We show that it is possible to define reflection isomorphisms on the double of the (twisted) Hall algebra of a quiver. Combining these reflections with Fourier transform yields an alternative construction of Lusztig's braid group action on a quantum enveloping algebra.