Canonical decompositions of 3-connected graphs

Autor: Carmesin, Johannes, Kurkofka, Jan
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1109/FOCS57990.2023.00115
Popis: We offer a new structural basis for the theory of 3-connected graphs, providing a unique decomposition of every such graph into parts that are either quasi 4-connected, wheels, or thickened $K_{3,m}$'s. Our construction is explicit, canonical, and has the following applications: we obtain a new theorem characterising all Cayley graphs as either essentially 4-connected, cycles, or complete graphs on at most four vertices, and we provide an automatic proof of Tutte's wheel theorem.
Comment: 52 pages
Databáze: arXiv