Planar algebra of the subgroup-subfactor
Planar algebra of the subgroup-subfactor
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子群子因子的平面代数
DOI:
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发表时间:
2008
期刊:
影响因子:
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通讯作者:
V. Gupta
中科院分区:
文献类型:
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作者:
V. Gupta
We give an identification between the planar algebra of the subgroupsubfactor R ⋊ H ⊂ R ⋊ G and the G-invariant planar subalgebra of the planar algebra of the bipartite graph ★n, where n = [G: H]. The crucial step in this identification is an exhibition of a model for the basic construction tower, and thereafter of the standard invariant of R ⋊ H ⊂ R ⋊ G in terms of operator matrices.We also obtain an identification between the planar algebra of the fixed algebra subfactor RG ⊂ RH and the G-invariant planar subalgebra of the planar algebra of the ‘flip’ of ★n.