A Group-Theoretic Model for Symmetric Interconnection Networks
IEEE Transactions on Computers
Arrangement graphs: a class of generalized star graphs
Information Processing Letters
Factoring N-cycles and counting maps of given genus
European Journal of Combinatorics
Discrete Mathematics - Special issue on selected papers in honor of Henry W. Gould
There is no optimal routing policy for the torus
Information Processing Letters
Transposition Networks as a Class of Fault-Tolerant Robust Networks
IEEE Transactions on Computers
Higher dimensional hexagonal networks
Journal of Parallel and Distributed Computing
On the number of factorizations of a full cycle
Journal of Combinatorial Theory Series A
Distance formula and shortest paths for the (n,k)-star graphs
Information Sciences: an International Journal
International Journal of Computer Mathematics
The number of shortest paths in the (n, k)-star graphs
COCOA'10 Proceedings of the 4th international conference on Combinatorial optimization and applications - Volume Part I
Partial Jucys-Murphy elements and star factorizations
European Journal of Combinatorics
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A solution to the shortest path enumeration problem can find numerous applications in studying issues related to interconnection networks. In this paper, we enumerate the number of shortest paths between any two vertices in an arrangement graph by establishing a bijection between these shortest paths and a collection of ordered forests of certain bi-colored trees, via minimum factorizations of permutations corresponding to such vertices in terms of so-called arrangement transpositions, and then count the number of these forests with the help of an existing result on the enumeration of such bi-colored trees. Our result generalizes previous ones and can be applied to solve the same problem for other related graphs such as the alternating group graph. On the other hand, the techniques applied to derive such an enumeration result further extend the ongoing work of counting the number of minimum factorizations of a permutation in terms of a certain type of transposition, a rather interesting problem in the area of algebraic combinatorics.