U(h)-free modules and coherent families

U(h)-free modules and coherent families
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DOI:
10.1016/j.jpaa.2015.09.013
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发表时间:
2015-01
影响因子:
0.8
通讯作者:
Jonathan Nilsson
Jonathan Nilsson
中科院分区:
数学2区
文献类型:
--
作者:
Jonathan Nilsson

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研究了U(h)-free g-模范畴.利用从这个范畴到凝聚族范畴的函子,我们证明了U(h)-free模仅当g是A型或C型时才存在。然后,我们对秩为1的C型U(h)-free模的同构类进行了分类,其中包括一个新的简单sp(2n)-模的显式构造.然后通过平移函子将分类扩展到更高的秩。
We investigate the category of U (h)-free g-modules. Using a functor from this category to the category of coherent families, we show that U (h)-free modules only can exist when g is of type A or C. We then proceed to classify isomorphism classes of U (h)-free modules of rank 1 in type C, which includes an explicit construction of new simple sp (2 n)-modules. The classification is then extended to higher ranks via translation functors.