The bypass-map compatibility conjecture for surgery cobordisms

From papers

Let KS3K\subset S^3 be a knot, let Sn3(K)S^3_{-n}(K) be obtained by (n)(-n)-surgery, and let WW be the natural cobordism from S3S^3 to Sn3(K)S^3_{-n}(K). Let ti:H2(Wn)Zt_i:H_2(W_{-n})\to\mathbb{Z} be the basic-class label appearing in the decomposition of the cobordism map, and let I+\mathcal{I}_+ denote the relevant summand in the decomposition of framed instanton Floer homology. Bypass-map compatibility conjecture. There exists an integer NN such that, for every integer i[0,n1]i\in[0,n-1], under the identifications

I(Sn3(K))I+(Sn3(K),K^),I(S3)I+(S1/03(K),K),I^{\sharp}(-S^3_{-n}(K))\cong\mathcal{I}_+(-S^3_{-n}(K),\widehat{K}),\qquad I^{\sharp}(-S^3)\cong\mathcal{I}_+(-S^3_{1/0}(K),K),

we have

I(Wn,ti)=I(Wn)I+(Sn3(K),K^,Ni),I^{\sharp}(W_{-n},t_i)=I^{\sharp}(W_{-n})\big|_{\mathcal{I}_+(-S^3_{-n}(K),\widehat{K},N-i)},

and this cobordism map can be recovered by bypass maps. This conjecture concerns compatibility between the decomposition of the surgery cobordism map and the decomposition of I(Sn3(K))I^{\sharp}(-S^3_{-n}(K)). Its resolution status is not specified in the supplied text.

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

Zhenkun Li and Fan Ye, “Instanton Floer homology, sutures, and Heegaard diagrams”, arXiv:2010.07836 (2021).

Solutions 0

No solutions have been posted yet.