Kirby-Thompson distance for trisections of knotted surfaces

Ryan Blair, Marion Campisi, Scott A. Taylor +1

We adapt work of Kirby-Thompson and Zupan to define an integer invariant $\mathcal{L}(\mathcal{T})$ of a bridge trisection $\mathcal{T}$ of a smooth surface $\mathcal{K}$ in $S^4$…