Minimal affine coordinates for SL(3,C) character varieties of free groups
Minimal affine coordinates for SL(3,C) character varieties of free groups
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自由群 SL(3,C) 特征簇的最小仿射坐标
DOI:
10.1016/j.jalgebra.2008.06.031
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发表时间:
2007
影响因子:
0.9
通讯作者:
Sean Lawton
中科院分区:
文献类型:
--
作者:
Sean Lawton
Let Xrbe the moduli of SL(3,C) representations of a rank r free group. In this paper we determine minimal generators of the coordinate ring of Xr. This at once gives explicit global coordinates for the moduli and determines the dimension of the moduli's minimal affine embedding. Along the way, we utilize results concerning the moduli of r-tuples of matrices in gl(3,C). Consequently, we also state general invariant theoretic correspondences between the coordinate rings of the moduli of r-tuples of elements in gl(n,C), sl(n,C), and SL(n,C).