The N-filling formula for unoriented knot Floer homology
Let be a -manifold and a knot, with meridian . Let be the twisted -bundle over the Klein bottle, and let be the N-filling of with respect to , obtained by gluing so that its homological longitude maps to . Let be the proposed unoriented knot Floer homology, and let denote Heegaard Floer homology. N-filling conjecture. There is an isomorphism
This conjecture connects the proposed knot Floer invariant with the -filling construction used in the study of graph-manifold L-space questions; the supplied source gives no resolution status.
References
Primary source
Deeparaj Bhat, Zhenkun Li and Fan Ye, “Instanton 2-torsion and fibered knots”, arXiv:2512.24206 (2025).
Progress summary
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.