The Hamiltonian problem on distance-hereditary graphs

Authors:
Sun-Yuan Hsieh;Chin-Wen Ho;Tsan-Sheng Hsu;Ming-Tat Ko
Affiliations:
Department of Computer Science and Information Engineering, National Cheng Kung University, Tainan, Taiwan and Institute of Information Science, Academia Sinica, Taipei, Taiwan;Department of Computer Science and Information Engineering, National Central University, Chung-Li, Taiwan;Institute of Information Science, Academia Sinica, Taipei, Taiwan;Institute of Information Science, Academia Sinica, Taipei, Taiwan
Venue:
Discrete Applied Mathematics
Year:
2006

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Abstract

In this paper, we first present an O(n + m)-time sequential algorithm to solve the Hamiltonian problem on a distance-hereditary graph G, where n and m are the number of vertices and edges of G, respectively. This algorithm is faster than the previous best known algorithm for the problem which takes O(n2) time. We also give an efficient parallel implementation of our sequential algorithm. Moreover, if G is represented by its decomposition tree form, the problem can be solved optimally in O(log n) time using O((n + m)/log n) processors on an EREW PRAM.