Clifford-band width conjecture

Let Mp,q=Sp×Sq×[1,1]M_{p,q}=\mathbf S^p\times\mathbf S^q\times[-1,1] be a Clifford band, and let gg be a smooth metric on Mp,qM_{p,q}. Clifford-band width conjecture. If

sec(g)1,\operatorname{sec}(g)\geq1,

then

width(Mp,q,g)π2.\operatorname{width}(M_{p,q},g)\leq\frac{\pi}{2}.

This is a proposed higher-dimensional analogue of the positive-sectional-curvature width estimate for overtorical bands; the source gives no resolution of the conjecture.

Sources & referencesView supporting material

Primary source

Jintian Zhu, “Width estimate and doubly warped product”, arXiv:2003.01315 (2020).

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.