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Article
The Number of Subtrees of Trees with Given Degree Sequence
Journal of Graph Theory
  • Xiu-Mei Zhang, Shanghai Jiao Tong University
  • Xiao-Dong Zhang, Shanghai Sandau University
  • Daniel Gray, University of Florida
  • Hua Wang, Georgia Southern University
Document Type
Article
Publication Date
7-1-2013
DOI
10.1002/jgt.21674
Disciplines
Abstract

This article investigates some properties of the number of subtrees of a tree with given degree sequence. These results are used to characterize trees with the given degree sequence that have the largest number of subtrees, which generalize the recent results of Kirk and Wang (SIAM J Discrete Math 22 (2008), 985–995). These trees coincide with those which were proven by Wang and independently Zhang et al. (2008) to minimize the Wiener index. We also provide a partial ordering of the extremal trees with different degree sequences, some extremal results follow as corollaries.

Citation Information
Xiu-Mei Zhang, Xiao-Dong Zhang, Daniel Gray and Hua Wang. "The Number of Subtrees of Trees with Given Degree Sequence" Journal of Graph Theory Vol. 73 Iss. 3 (2013) p. 280 - 295 ISSN: 1097-0118
Available at: http://works.bepress.com/daniel-gray/11/