Visualizing Overtwisted Discs in Open Books

  • Tetsuya Ito

    Kyoto University, Japan
  • Keiko Kawamuro

    University of Iowa, Iowa City, USA


We give an alternative proof of a theorem of Honda{Kazez{Matic that every non-right-veering open book supports an overtwisted contact structure. We also study two types of examples that show how overtwisted discs are embedded relative to right-veering open books.

Cite this article

Tetsuya Ito, Keiko Kawamuro, Visualizing Overtwisted Discs in Open Books. Publ. Res. Inst. Math. Sci. 50 (2014), no. 1, pp. 169–180

DOI 10.4171/PRIMS/128