Abstract
Let G be a tree and k a non-negative integer. We determine best possible upper and lower bounds on the number of pairs of vertices at distance exactly k in G in terms of order alone, and in terms of order and radius or diameter.
Original language | English |
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Pages (from-to) | 945-952 |
Number of pages | 8 |
Journal | Discrete Applied Mathematics |
Volume | 159 |
Issue number | 10 |
DOIs | |
Publication status | Published - 28 Jun 2011 |
Externally published | Yes |
Keywords
- Diameter
- Distance
- Distance distribution
- Radius
- Tree
ASJC Scopus subject areas
- Discrete Mathematics and Combinatorics
- Applied Mathematics