The classification conjecture for irreducible subfactor planar algebras of index between 5 and 3+53+\sqrt{5}

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Let a subfactor planar algebra mean the planar algebra associated with a finite-index subfactor, and let AA_\infty denote the infinite-depth principal graph. Consider irreducible subfactor planar algebras whose index lies in the interval (5,3+5)(5,3+\sqrt{5}). Classification conjecture. The only two irreducible subfactor planar algebras, apart from those with principal graph AA_\infty, are the two quantum group subfactors described above, arising from the 3-dimensional representations of SU(2)SU(2) and SU(3)SU(3) at a 14th root of unity. Computer evidence suggests that there are no other finite-depth subfactors in this interval, but a complete classification remains open; the two stated examples are known to be unique for their principal graphs.

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Primary source

Vaughan F. R. Jones, Scott Morrison and Noah Snyder, “The classification of subfactors of index at most 5”, arXiv:1304.6141 (2013).

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