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Covering a graph with cycles passing through given edges

โœ Scribed by Wang, Hong


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
91 KB
Volume
26
Category
Article
ISSN
0364-9024

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โœฆ Synopsis


We propose a conjecture: for each integer k โ‰ฅ 2, there exists N (k) such that if G is a graph of order n โ‰ฅ N (k) and d(x) + d(y) โ‰ฅ n + 2k -2 for each pair of nonadjacent vertices x and y of G, then for any k independent edges e 1 , . . . , e k of G, there exist

If this conjecture is true, the condition on the degrees of G is sharp. We prove this conjecture for the case k = 2 in the paper.


๐Ÿ“œ SIMILAR VOLUMES


Long cycles passing through a specified
โœ Hirohata, Kazuhide ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 247 KB ๐Ÿ‘ 1 views

## For a graph G and an integer an independent set of vertices in G}. Enomoto proved the following theorem. Let s โ‰ฅ 1 and let G be a (s + 2)-connected graph. Then G has a cycle of length โ‰ฅ min{|V (G)|, ฯƒ 2 (G) -s} passing through any path of length s. We generalize this result as follows. Let k โ‰ฅ

Long cycles passing through a specified
โœ Enomoto, Hikoe; Hirohata, Kazuhide; Ota, Katsuhiro ๐Ÿ“‚ Article ๐Ÿ“… 1997 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 80 KB ๐Ÿ‘ 2 views

We prove the following theorem: For a connected noncomplete graph Then through each edge of G there passes a cycle of length โ‰ฅ min{|V (G)|, ฯ„(G) -1}.