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arXiv 1509.03460math.RT
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关于表示有限代数的Grassmannian和轨道闭包

On quiver Grassmannians and orbit closures for representation-finite algebras

William Crawley-Boevey, Julia Sauter

摘要:

证明了Auslander代数存在唯一的由投射-内射生成和余生成的倾斜和余倾斜模,其自同态环称为投射商代数.对于任何表示有限代数,我们使用投影商代数来构造非奇异化的Grassmannian,表示簇中的轨道闭包,以及它们的非奇异化。这推广了Cerulli Irelli,Feigin和Reineke的结果.

英文摘要:

We show that Auslander algebras have a unique tilting and cotilting module which is generated and cogenerated by a projective-injective; its endomorphism ring is called the projective quotient algebra. For any representation-finite algebra, we use the projective quotient algebra to construct desingularizations of quiver Grassmannians, orbit closures in representation varieties, and their desingularizations. This generalizes results of Cerulli Irelli, Feigin and Reineke.

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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