Kirby–Thompson invariants of distant sums of standard surfaces
Abstract
Blair–Campisi–Taylor–Tomova [Blair, Campisi, Taylor and Tomova, Kirby-Thompson distance for trisections of knotted surfaces, J. Lond. Math. Soc. (2) 105(2) (2022) 765–793.] defined the [Formula: see text]-invariant [Formula: see text] of a knotted surface F, using pants complexes of trisection surfaces of bridge trisections of F. After that, Aranda–Pongtanapaisan–Zhang [Aranda, Pongtanapaisan and Zhang, Bounds for Kirby-Thompson invariants of knotted surfaces, Geom. Dedicata 217(6) (2023) 30] introduced the [Formula: see text]-invariant [Formula: see text] using dual curve complexes instead of pants complexes. In this paper, we determine both the [Formula: see text]-invariant and the [Formula: see text]-invariant of any finite distant sum of standard surfaces, and this is the first example of knotted surfaces whose bridge numbers and these invariants can be arbitrarily large.
Fields of Study & Subjects
Geometric and Algebraic Topology
Advanced Graph Theory Research
Algebraic Geometry and Number Theory
Publication details
- Journal / source
- Journal of Knot Theory and Its Ramifications
- Volume
- 35
- Issue
- 10
- Publication date
- 12 February 2026
- Language
- EN