The classification conjecture for subfactors of index between 5 and 3+53+\sqrt{5}

Let NMN\subset M be a subfactor with index in the interval (5,3+5)(5,3+\sqrt{5}). Its principal graph is the graph describing the associated standard invariant; write AA_\infty for the infinite AA-type principal graph. The paper also specifies two further principal-graph pairs, denoted here by Γ(A)\Gamma(\mathcal A) and Γ(B)\Gamma(\mathcal B).

Classification conjecture. Any subfactor with index in (5,3+5)(5,3+\sqrt{5}) has principal graph AA_\infty, Γ(A)\Gamma(\mathcal A), or Γ(B)\Gamma(\mathcal B).

The theorem preceding this statement proves the assertion for 1-supertransitive subfactors, while the conjecture removes that hypothesis and is left open by the paper.

Sources & referencesView supporting material

Primary source

Scott Morrison and Emily Peters, “The little desert? Some subfactors with index in the interval (5,3+5)”, arXiv:1205.2742 (2012).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.