Honeycomb toroidal graphs are Cayley graphs

There is a particular family of trivalent vertex-transitive graphs that have been called generalized honeycomb tori by some and brick products by others. They have been studied as hexagonal embeddings on the torus as well. We show that all these graphs are Cayley graphs on generalized dihedral groups.

[1]  Xiaofan Yang,et al.  Honeycomb tori are Hamiltonian , 1999, Inf. Process. Lett..

[2]  Xiaofan Yang,et al.  Fault-Tolerant Ring Embedding in a Honeycomb Torus with Node Failures , 1999, Parallel Process. Lett..

[3]  H. Coxeter,et al.  Generators and relations for discrete groups , 1957 .

[4]  Ivan Stojmenovic,et al.  Honeycomb Networks: Topological Properties and Communication Algorithms , 1997, IEEE Trans. Parallel Distributed Syst..

[5]  H. Wielandt,et al.  Finite Permutation Groups , 1964 .

[6]  Behrooz Parhami,et al.  A Unified Formulation of Honeycomb and Diamond Networks , 2001, IEEE Trans. Parallel Distributed Syst..

[7]  Wenjun Xiao,et al.  Hexagonal and Pruned Torus Networks as Cayley Graphs , 2004, Communications in Computing.

[8]  G. Sabidussi On a class of fixed-point-free graphs , 1958 .

[9]  Wenjun Xiao,et al.  Further mathematical properties of Cayley digraphs applied to hexagonal and honeycomb meshes , 2007, Discret. Appl. Math..

[10]  Amos Altshuler,et al.  Hamiltonian circuits in some maps on the torus , 1972, Discret. Math..

[11]  Hong-Jian Lai,et al.  Generalized honeycomb torus is Hamiltonian , 2004, Inf. Process. Lett..

[12]  D. Maru,et al.  Symmetries of Hexagonal Molecular Graphs on the Torus , 2000 .

[13]  Li-Yen Hsu,et al.  Generalized honeycomb torus , 2003, Inf. Process. Lett..

[14]  Li-Yen Hsu,et al.  Ring embedding in faulty honeycomb rectangular torus , 2002, Inf. Process. Lett..

[15]  C. C. Chen,et al.  On a class of Hamiltonian laceable 3-regular graphs , 1996, Discret. Math..