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arXiv 1503.08279math.RT
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SO(2n,C)- character品种不是性状品种

SO(2n,C)-character varieties are not varieties of characters

Adam S. Sikora

摘要:

本文证明了$n\geq 2$和corank $\geq 2.$的所有群Gamma的SO(2n,C)-特征标簇的坐标环不是由迹函数或广义迹函数生成的,并给出了广义迹函数不可区分的非共轭完全可约表示的例子.因此,SO(2n,C)-性状变种不是性状变种。然而,我们也证明了任何一般的SO(2n,C)-表示的自由群可以区别于所有的非等价表示的迹函数和一个单一的广义迹函数。

英文摘要:

We prove that the coordinate rings of SO(2n,C)-character varieties are not generated by trace functions nor generalized trace functions for $n\geq 2$ and all groups Gamma of corank $\geq 2.$ Furthermore, we give examples of non-conjugate completely reducible representations undistinguishable by generalized trace functions. Hence, SO(2n,C)-character varieties are not varieties of characters. However, we also prove that any generic SO(2n,C)-representation of a free group can be distinguished from all non-equivalent representations by trace functions and by a single generalized trace function.

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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