Annulus-twist invariance conjecture for the 4-ball genus
Annulus-twist invariance conjecture for the 4-ball genus
Let be a knot with a band presentation whose induced framing is , and let be the knot obtained from by applying an annulus twist times.
Annulus-twist invariance conjecture. The 4-ball genera satisfy
This conjecture proposes that applying annulus twists preserves the 4-ball genus for knots admitting a band presentation with induced framing zero. The surrounding discussion presents it as a proposed relationship motivated by the study of shake genus and 4-ball genus; no resolution is given here.
Sources & referencesView supporting material
Primary source
Tetsuya Abe, In Dae Jong, Yuka Omae and Masanori Takeuchi, “Annulus twist and diffeomorphic 4-manifolds”, arXiv:1209.0361 (2013).
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
Sign in to submit a solution.
No solutions have been posted yet.