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Adjacent vertices fault tolerance hamiltonian laceability of star graphs 楊俊彥、洪春男

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Adjacent vertices fault tolerance hamiltonian laceability of star graphs 楊俊彥、洪春男

E-mail: [email protected]

ABSTRACT

Let Sn be an n-dimensional Star graph. In this paper, we show that Sn ?F is Hamiltonian laceable where F is the set of f ?(n?4) pairs of adjacent faulty vertices, Sn?F is Hamiltonian where F is the set of f ?(n?3) pairs of adjacent faulty vertices. We also show that Sn ?F is hyper-Hamiltonian laceable where F is the set of f ?(n ?4) pairs of adjacent faulty vertices. Applying these results, we also construct the fault-free cycle with length n! ?2f + 2 in Sn ?F’ where F’ is the faulty vertices set with at least a black vertex and a white vertex for |F’| = f ?n?2 and the fault-free path with length n! ?2f+ 1 for any two different color vertices in Sn?F’where F’is the faulty vertices set with at least a black vertex and a white vertex for |F'| = f ?n?3 and n!?2f for any two same color vertices in Sn ?F

′where F′is the faulty vertices set for |F'| = f ?n?3

Keywords : Sn ; Hamiltonian laceable ; hyper-Hamiltonian laceable. ; Star graph ; Hamiltonian Table of Contents

封面內頁 簽名頁 授權書...iii 中文摘要...iv 英文 摘要...v 誌謝...vi 目

錄...vii 圖目錄...viii 表目

錄...ix Chapter 1 Introduction and Definitions...1 Chapter 2 The Adjacency Hamiltonian Laceablility of Star Graphs...4 Chapter 3 Fault-free Cycle and Path in Star Graphs with Faulty Vertices...24 Section 3.1. Fault-free Cycle...24 Section 3.2. Fault-free

Path...25 Chapter 4 Conclusion...31 Bibliography...32

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