A graph is called weakly pancyclic if it contains cycles of all lengths between its girth and circumference. In answer to a question of ErdΕs, we show that a Hamiltonian weakly-pancyclic graph of order n can have girth as large as about 2 n/ log n. In contrast to this, we show that the existence of
On the girth of infinite graphs
β Scribed by Norbert Seifter
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 599 KB
- Volume
- 118
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
Let X be an infinite k-valent graph with polynomial growth of degree d, i.e. there is an integer d and a constant c such that fx(n) 3, d> 1, 123, there exist k-valent connected graphs with polynomial growth of degree d and girth greater than 1. This means that in general the girth of graphs with polynomial growth mainly depends on the constant c in the upper bound of the growth function. We also prove lower bounds for the girth of Cayley graphs of certain classes of groups with polynomial growth.
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