Electronic Journal of Graph Theory and Applications (EJGTA)
Vol 14, No 1 (2026): Electronic Journal of Graph Theory and Applications

Decompositions and packings in truncated triangulations

Muzheve, Michael (Texas A&M University - Kingsville)



Article Info

Publish Date
22 Apr 2026

Abstract

We study decompositions and packings in truncated triangulations GT△ obtained from simple connected plane graphs G with minimum degree two. We show GT△ is a 3-connected cubic planar graph with at least 2|E(G)|² - 2|E(G)| + 1 perfect matchings, a Λ-factor, and can be decomposed into a union of C₆'s and K₂'s if G is bipartite. Additionally, we show that GT△ is hamiltonian if G is bipartite with a dominating path P satisfying, for any e = xy ∉ E(P) exactly one of x and y is in V(P). We also prove a result giving necessary and sufficient conditions for the hamiltonicity of GT△. Additional results include showing that a truncated triangulation of a cubic plane bipartite graph G has a hamiltonian cycle that separates specific faces of GT△ if and only if the triangulation G△ has an A-trail.

Copyrights © 2026






Journal Info

Abbrev

ejgta

Publisher

Subject

Electrical & Electronics Engineering

Description

The Electronic Journal of Graph Theory and Applications (EJGTA) is a refereed journal devoted to all areas of modern graph theory together with applications to other fields of mathematics, computer science and other sciences. The journal is published by the Indonesian Combinatorial Society ...