For now almost 100 years, much attention has been devoted to studying embeddings of complexes [8, 21, 32, 33, 43, 56, 68, 70]. Typical types of embeddings include geometric …
We introduce the problem Synchronized Planarity. Roughly speaking, its input is a loop-free multi-graph together with synchronization constraints that, eg, match pairs of vertices of …
Firstly, we characterise the embeddability of simply connected locally 3-connected 2- dimensional simplicial complexes in 3-space in a way analogous to Kuratowski's …
arXiv:1709.04643v3 [math.CO] 4 Sep 2019 Page 1 Embedding simply connected 2-complexes in 3-space II. Rotation systems Johannes Carmesin University of Birmingham September 5 …
The game of Cops and Robber is usually played on a graph, where a group of cops attempt to catch a robber moving along the edges of the graph. The cop number of a graph is the …
M Ozawa - Journal of Mathematical Sciences, 2021 - go.gale.com
MULTIBRANCHED SURFACES IN 3-MANIFOLDS. - Document - Gale Academic OneFile Use this link to get back to this page. Copy Skip to Content Library Menu: Google Scholar …
R Steiner - European Journal of Combinatorics, 2024 - Elsevier
Hadwiger's conjecture, among the most famous open problems in graph theory, states that every graph that does not contain K t as a minor is properly (t− 1)-colorable. The purpose of …
A simplicial complex is said to be {\em critical}(or {\em forbidden}) for the 3-sphere $ S^ 3$ if it cannot be embedded in $ S^ 3$ but after removing any one point, it can be embedded. We …
We introduce the class of outerspatial 2-complexes as the natural generalisation of the class of outerplanar graphs to three dimensions. Answering a question of O-joung Kwon, we …