The arc complex and contact geometry, non-destabilizable planar open book decompositions of the tight contact 3-sphere
Joint work with Youlin Li,
IMRN 2015 (2015), 1401--1420.

In this note we introduce the (homologically essential) arc complex of a surface as a tool for studying properties of open book decompositions and contact structures. After characterizing destabilizability in terms of the essential translation distance of the monodromy of an open book we given an application of this result to show that there are planer open books of the standard contact structure on $S^3$ with 5 (or any number larger than 5) boundary components that do not destabilize. We also show that any planar open book with 4 or fewer boundary components does destabilize.

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