Weakly Disk-Busting Curves in the Boundary of a Compression Body

Weakly Disk-Busting Curves in the Boundary of a Compression Body

Year:    2018

Author:    Meng Sun, Liang Liang

Communications in Mathematical Research , Vol. 34 (2018), Iss. 2 : pp. 171–176

Abstract

Let $V$ be a nontrivial compression body which is not simple. An essential simple closed curve $J$ in $\partial_+V$ is called weakly disk-busting if $\partial_+V-J$ has only one compressing disk up to isotopy. In this paper, we give an upper bound of the diameter of the image of boundaries of essential disks in $V$ under any projection determined by a weakly disk-busting curve. Moreover, we give a sufficient condition for the handle additions to be boundary irreducible.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.13447/j.1674-5647.2018.02.09

Communications in Mathematical Research , Vol. 34 (2018), Iss. 2 : pp. 171–176

Published online:    2018-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    6

Keywords:    handle addition curve complex subsurface projection weakly disk-busting

Author Details

Meng Sun

Liang Liang