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Tolérance aux pannes dans les graphes distants et circulants

Tolérance aux pannes dans les graphes distants et circulants

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SETIT2005<br />

présence d’un somm<strong>et</strong>/arête en panne. Ils sont 1<br />

panne-tolérant hamiltonien.<br />

Pour <strong>les</strong> <strong>graphes</strong> <strong>circulants</strong> Cn(1, r), nous avons<br />

prouvé qu’un cycle hamiltonien est plongeable en<br />

présence de deux arêtes en <strong>pannes</strong> si n ≥ 2r+1. Nous<br />

avons prouvé aussi que l’on peut plonger un cycle<br />

hamiltonien en présence de deux somm<strong>et</strong>s en panne si<br />

n ≥ 6r-6 <strong>et</strong>, <strong>dans</strong> certains cas, si 2r+2≤n2r+2 .<br />

Les résultas obtenus <strong>dans</strong> notre travail représentent<br />

le début de l’étude de la conjecture de Sung <strong>et</strong> al.<br />

(Sung & al., 2000) , qui dit qu’un graphe circulant<br />

C(n ;1,2,…,k) est k panne-tolérant hamiltonien.<br />

Journal of Interconnection N<strong>et</strong>works 3(3-4): 273-289<br />

(2002)<br />

(Vandegriend, 1998) B.Vandegriend: Finding Hamiltonian<br />

Cyc<strong>les</strong>: Algorithms, Graphs and Performance. Thesis for<br />

the degree of Master Science, University of Alberta.<br />

(1998).(Yang & al., 1995) Q.F. Yang & al.: Hamiltonian<br />

cyc<strong>les</strong> in Circulant Digraphs with Two Stripes.<br />

Références<br />

(Cho & al., 2002) H. J.Cho & al.. Ring embedding in faulty<br />

honeycomb rectangular torus, Inforamtion Processin<br />

L<strong>et</strong>ters 84,277-284. (2002).<br />

(Fu, 2002) J. S. Fu. Cycle embedding in a faulty hypercube,<br />

9th International Conference on Parallel and<br />

Distributed Systems December 17 - 20, 2002 Taiwan,<br />

ROC.<br />

(Heuberger, 2001) C.Heuberger. On planarity and<br />

colorability of circulant graphs. To appear in Discr<strong>et</strong>e<br />

Math.<br />

(Hsieh & al., 1999) S.Y.Hsieh & al.. Fault-free Hamiltonian<br />

cyc<strong>les</strong> in faulty arrangement graphs, IEE Trans. Parallel<br />

Distributed Systems 10 (32) (1999) 223-237.<br />

(Hsieh & al., 2001) S.Y Hsieh & al.. Longest fault-free paths<br />

in star graphs with vertex faults, Theor<strong>et</strong>ical Computer<br />

Science 262, 215-227 (2001).<br />

(Hsu & al., 2002a) L.H. Hsu & al.. Fault-tolerant<br />

Hamiltonian laceability of hypercubes.. Information<br />

Processing L<strong>et</strong>ters 83 (2002) 301-306.<br />

(Hsu & al., 2002b) L.H. Hsu & al.: Fault-tolerant<br />

hamiltonicity of Twisted Cubes.. Journal of Parallel and<br />

Distributed Computing 62, 591-604 (2002).<br />

(Hwang, 2000) F.K. Hwang. A complementary survey on<br />

double-loop n<strong>et</strong>works, Theor<strong>et</strong>ical Computer science<br />

(2000).<br />

(Sung & al., 1998). T.Y.Sung & al.. Fault tolerant token ring<br />

embedding in double loop n<strong>et</strong>works, Information<br />

Processig L<strong>et</strong>ters 66, 201-207 (1998).<br />

(Sung & al., 2000). T.Y. Sung & al.. Optimal k-Fault-<br />

Tolerant N<strong>et</strong>works for Token Rings, Journal of<br />

Information Science and Engineering 16, 381-390<br />

(2000).<br />

(Teng, 1997) Y.C. Teng & al.. Fault-Tolerant Ring<br />

Embedding in a Star Graph with Both Link and Node<br />

Failures. IEE Trans. Parallel Distributed Systems, pp.<br />

1185-1195.<br />

(Tsai & al., 2002) Chang-Hsiung Tsai, Jimmy J. M. Tan,<br />

Yen-Chu Chuang, Lih-Hsing Hsu. Hamiltonian<br />

Properties of Faulty Recursive Circulant Graphs.

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