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arXiv 1208.0889math.RTmath.CO
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$A^{(2)}_{2\ell}$型有限Hecke代数的表示型

Representation type of finite quiver Hecke algebras of type $A^{(2)}_{2\ell}$

Susumu Ariki, Euiyong Park

摘要:

本文研究了$A^{(2)}_{2\ell}$型分圆Hecke代数$R^{Λ_0}(β)$,其中$Λ_0$是基本权.代数是自然的$A^{(2)}_{2\ell}$型类似物岩堀-赫克代数与对称群,从福克空间理论的观点发展的第一作者和他的合作者。我们给出了代数维数的一个公式,并给出了判断其表示类型的一个简单判据。该判据是Erdmann和Nakano关于Iwahori-Hecke代数的一个自然推广。除了来自分圆Hecke代数的例子外,没有关于分圆Hecke代数的这类结果,我们的结果是分圆Hecke代数之外的第一个例子.

英文摘要:

We study cyclotomic quiver Hecke algebras $R^{Λ_0}(β)$ in type $A^{(2)}_{2\ell}$, where $Λ_0$ is the fundamental weight. The algebras are natural $A^{(2)}_{2\ell}$-type analogue of Iwahori-Hecke algebras associated with the symmetric group, from the viewpoint of the Fock space theory developed by the first author and his collaborators. We give a formula for the dimension of the algebra, and a simple criterion to tell the representation type. The criterion is a natural generalization of Erdmann and Nakano's for the Iwahori-Hecke algebras. Except for the examples coming from cyclotomic Hecke algebras, no results of these kind existed for cyclotomic quiver Hecke algebras, and our results are the first instances beyond the case of cyclotomic Hecke algebras.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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