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Panconnectivity of locally twisted cubes. (English) Zbl 1118.05050

Summary: The locally twisted cube \(LTQ_{n}\) which is a newly introduced interconnection network for parallel computing is a variant of the hypercube \(Q_{n}\). X. Yang et al. [Appl. Math. Lett. 17, 919–925 (2004; Zbl 1056.05074)] proved that \(LTQ_{n}\) is Hamiltonian connected and contains a cycle of length from 4 to \(2^{n}\) for \(n \geq 3\). In this work, we improve this result by showing that for any two different vertices \(u\) and \(v\) in \(LTQ_{n}\) \((n \geq 3)\), there exists a \(uv\)-path of length \(l\) with \(d(u,v)+2 \leq l \leq 2^{n} - 1\) except for a shortest \(uv\)-path.

MSC:

05C38 Paths and cycles
05C40 Connectivity
90C27 Combinatorial optimization

Citations:

Zbl 1056.05074
Full Text: DOI

References:

[1] Yang, X.; Megson, G. M.; Evans, D. J., Locally twisted cubes are 4-Pancyclic, Applied Mathematics Letters, 17, 919-925 (2004) · Zbl 1056.05074
[2] Chang, J.-M.; Yang, J.-S.; Wang, Y.-L.; Cheng, Y., Panconnectivity, fault-tolerant Hamiltonicity and Hamiltonian-connectivity in alternating group graphs, Networks, 44, 302-310 (2004) · Zbl 1055.05076
[3] Li, T.-K.; Tsai, C.-H.; Tan, J. J.M.; Hsu, L.-H., Bipanconnectivity and edge-fault-tolerant bipancyclicity of hypercubes, Information Processing Letters, 87, 107-110 (2003) · Zbl 1161.68684
[4] Fan, J., Hamilton-connectivity and cycle-embedding of Möbius cubes, Information Processing Letters, 82, 113-117 (2002) · Zbl 1013.68008
[5] W.-T. Huang, W.-K. Chen, C.-H. Chen, Pancyclicity of Möbius cubes, in: Proceedings of the Ninth International Conference on Parallel and Distributed Systems, ICPADS’02, 17-20 December 2002, pp. 591-596; W.-T. Huang, W.-K. Chen, C.-H. Chen, Pancyclicity of Möbius cubes, in: Proceedings of the Ninth International Conference on Parallel and Distributed Systems, ICPADS’02, 17-20 December 2002, pp. 591-596
[6] Yang, X.; Evans, D. J.; Megson, G. M., The locally twisted cubes, International Journal of Computer Mathematics, 82, 4, 401-413 (2005) · Zbl 1097.68522
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