Stability conjecture for near-biprojections in subfactor planar algebras

From papers

Suppose P,±\mathscr{P}_{\bullet,\pm} is an irreducible subfactor planar algebra. For xP2,±x\in\mathscr{P}_{2,\pm}, let F(x)\mathfrak{F}(x) denote its Fourier transform, and let P,QP,Q be projections and λ\lambda a constant. Stability conjecture. For any ε>0\varepsilon>0, there exists ε\varepsilon' such that if

xP2<εandF(x)λQ2<ε,\|x-P\|_2<\varepsilon'\quad\text{and}\quad\|\mathfrak{F}(x)-\lambda Q\|_2<\varepsilon',

then there is a biprojection BB such that xB<ε\|x-B\|<\varepsilon. This asks whether simultaneous closeness to a projection and, after Fourier transform, to a scalar multiple of a projection forces closeness to a biprojection; the supplied text does not indicate whether the conjecture has been resolved.

Progress summary

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

Sources & referencesView supporting material

Primary source

Arthur Jaffe, Chunlan Jiang, Zhengwei Liu, Yunxiang Ren and Jinsong Wu, “Quantum Fourier Analysis”, arXiv:2002.03477 (2020).

Solutions 0

No solutions have been posted yet.