Global defensive alliances of trees and Cartesian product of graphs

碩士 === 國立東華大學 === 應用數學系 === 95 === We study the global defensive alliance of graphs in this thesis. we give an algorithm to determine the global defensive alliance number of trees, and find γ_{a}(T), when T is a complete k-ary tree for k=2,3,4. We also study the global defensive alliance of the Cart...

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Bibliographic Details
Main Authors: Li-Ling Lai, 賴麗鈴
Other Authors: David Kuo
Format: Others
Language:en_US
Published: 2007
Online Access:http://ndltd.ncl.edu.tw/handle/pck3kx
Description
Summary:碩士 === 國立東華大學 === 應用數學系 === 95 === We study the global defensive alliance of graphs in this thesis. we give an algorithm to determine the global defensive alliance number of trees, and find γ_{a}(T), when T is a complete k-ary tree for k=2,3,4. We also study the global defensive alliance of the Cartesian product of paths and cycles. We give upper bounds and lower bounds for γ_{a}(P_{m}×P_{n}), γ_{a}(C_{m}×P_{n}) and γ_{a}(C_{m}×C_{n}), and show that the bounds are sharp for special m,n