The tau-sharp equality conjecture for knots

Let KS3K\subset S^3 be a knot. The invariant τ\tau^\sharp is the framed-instanton concordance homomorphism, and τ\tau is the Heegaard Floer concordance invariant.

Tau-sharp equality conjecture.

τ(K)=τ(K)\tau^\sharp(K)=\tau(K)

for every knot KS3K\subset S^3.

The source states that the two concordance homomorphisms agree for homogeneous and quasipositive knots, and conjectures equality for all knots. No resolution is given here.

Sources & referencesView supporting material

Primary source

John A. Baldwin and Steven Sivek, “Framed instanton homology and concordance”, arXiv:2004.08699 (2021).

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.