Abstract
A thrackle on a surfaceX is a graph of size e and order n drawn on X such that every two distinct edges of G meet exactly once either at their common endpoint, or at a proper crossing. An unsolved conjecture of Conway (1969) asserts that (Formula presented.) for every thrackle on a sphere. Until now, the best known bound is (Formula presented.). By using discharging rules we show that (Formula presented.).
Original language | English |
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Pages (from-to) | 410-416 |
Number of pages | 7 |
Journal | Discrete & Computational Geometry |
Volume | 58 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Sept 2017 |