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2‐connected coverings of bounded degree in 3‐connected graphs
Author(s) -
Gao Zhicheng
Publication year - 1995
Publication title -
journal of graph theory
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 54
eISSN - 1097-0118
pISSN - 0364-9024
DOI - 10.1002/jgt.3190200309
Subject(s) - combinatorics , mathematics , planar graph , klein bottle , degree (music) , projective plane , graph , discrete mathematics , connected component , torus , geometry , physics , acoustics , correlation
In a recent paper, Barnette showed that every 3‐connected planar graph has a 2‐connected spanning subgraph of maximum degree at most fifteen, he also constructed a planar triangulation that does not have 2‐connected spanning subgraphs of maximum degree five. In this paper, we show that every 3‐connected graph which is embeddable in the sphere, the projective plane, the torus or the Klein bottle has a 2‐connected spanning subgraph of maximum degree at most six. © 1995 John Wiley & Sons, Inc.