Title
Homeomorphically irreducible spanning trees in locally connected graphs
Abstract
A spanning tree T of a graph G is called a homeomorphically irreducible spanning tree (HIST) if T does not contain vertices of degree 2. A graph G is called locally connected if, for every vertex v ∈ V(G), the subgraph induced by the neighbourhood of v is connected. In this paper, we prove that every connected and locally connected graph with more than 3 vertices contains a HIST. Consequently, we confirm the following conjecture due to Archdeacon: every graph that triangulates some surface has a HIST, which was proposed as a question by Albertson, Berman, Hutchinson and Thomassen.
Year
DOI
Venue
2012
10.1017/S0963548311000526
Combinatorics, Probability & Computing
Keywords
DocType
Volume
following conjecture,graph G,Homeomorphically irreducible,homeomorphically irreducible,vertex v
Journal
21
Issue
ISSN
Citations 
1-2
0963-5483
6
PageRank 
References 
Authors
1.45
0
3
Name
Order
Citations
PageRank
G. Chen1328.36
Han Ren2237.51
Songling Shan3209.16