23 citations · 257 across the 67 of their papers we have counts for
4 papers · 2 filters
Visualizing overtwisted discs in open books
Tetsuya Ito, Keiko Kawamuro
We give an alternative proof of a theorem of Honda-Kazez-Matić that every non-right-veering open book supports an overtwisted contact structure. We also study two types of examples…
Operations on open book foliations
Tetsuya Ito, Keiko Kawamuro
We study b-arc foliation change and exchange move of open book foliations which generalize the corresponding operations in braid foliation theory. We also define a bypass move as a…
Framing functions and strengthened version of Dehn's lemma
Tetsuya Ito
We give a lower estimate of the framing function of knots, and prove a strengthened version of Dehn's lemma conjectured by Greene-Wiest.
On surface links whose link groups are abelian
Tetsuya Ito, Inasa Nakamura
We study surface links whose link groups are free abelian, and construct various stimulating and highly non-trivial examples of such surface links.