Minimal Disc Diagrams of 5 / 9 -Simplicial Complexes
Ioana‐Claudia Lazăr · The Michigan Mathematical Journal · 2020
We introduce and study a local combinatorial condition, called the 5 / 9 -condition, on a simplicial complex, implying Gromov hyperbolicity of its universal cover. We hereby give an application of another combinatorial condition, called 8 -location, introduced by Damian Osajda. Along the way we prove the minimal filling diagrams lemma for 5 / 9 -complexes.