The paths embedding of the arrangement graphs with prescribed vertices in given position

The paths embedding of the arrangement graphs with prescribed vertices in given position

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Article ID: iaor20126005
Volume: 24
Issue: 4
Start Page Number: 627
End Page Number: 646
Publication Date: Nov 2012
Journal: Journal of Combinatorial Optimization
Authors: , , ,
Keywords: graphs
Abstract:

Let n and k be positive integers with nk≥2. The arrangement graph A n,k is recognized as an attractive interconnection networks. Let x, y, and z be three different vertices of A n,k . Let l be any integer with d A n , k ( x , y ) l n ! ( n k ) ! 1 d A n , k ( y , z ) equ1 . We shall prove the following existance properties of Hamiltonian path: (1) for nk≥3 or (n,k)=(3,1), there exists a Hamiltonian path R(x,y,z;l) from x to z such that d R(x,y,z;l)(x,y)=l; (2) for nk=2 and n≥5, there exists a Hamiltonian path R(x,y,z;l) except for the case that x, y, and z are adjacent to each other.

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