Positive braids of maximal signature
Sebastian Baader
Universität Bern, Switzerland
![Positive braids of maximal signature cover](/_next/image?url=https%3A%2F%2Fcontent.ems.press%2Fassets%2Fpublic%2Fimages%2Fserial-issues%2Fcover-lem-volume-59-issue-3.png&w=3840&q=90)
Abstract
We characterise positive braid links with positive Seifert form via a finite number of forbidden minors. From this we deduce a one-to-one correspondence between prime positive braid links of maximal signature and simply laced Dynkin diagrams, as well as a simple classification of alternating positive braid knots.
Cite this article
Sebastian Baader, Positive braids of maximal signature. Enseign. Math. 59 (2013), no. 3/4, pp. 351–358
DOI 10.4171/LEM/59-3-8