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Long cycles passing through a specified path in a graph

โœ Scribed by Hirohata, Kazuhide


Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
247 KB
Volume
29
Category
Article
ISSN
0364-9024

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โœฆ Synopsis


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 3 and s โ‰ฅ 1 and let G be a (k+s-1)-connected graph. Then G has a cycle of length โ‰ฅ min{|V (G)|, 2 k ฯƒ k (G) -s} passing through any path of length s.


๐Ÿ“œ SIMILAR VOLUMES


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}.

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โœ Barovich, Mark V. ๐Ÿ“‚ Article ๐Ÿ“… 2000 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 252 KB ๐Ÿ‘ 2 views

Let G be a 2-connected graph, let u and v be distinct vertices in V (G), and let X be a set of at most four vertices lying on a common (u

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โœ Dong, Jinquan ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 117 KB ๐Ÿ‘ 2 views

A graph G is said to be P t -free if it does not contain an induced path on t vertices. The i-center C i (G) of a connected graph G is the set of vertices whose distance from any vertex in G is at most i. Denote by I(t) the set of natural numbers i, t/2 โ‰ค i โ‰ค t -2, with the property that, in every c