【摘 要】
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It has been known that determining the exact value of vertex distinguishing edge index χ's (G) of a graph G is difficult, even for simple classes of graphs
【机 构】
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CollegeofMathematicsandStatistics,DepartmentofMathematicsandStatisticsofGeorgiaStateUniversity
【基金项目】
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The first author is supported by the National Natural Science Foundation of China （61163054）, the second author is supported by the National Natural Science Foundation of China （61163037）.
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It has been known that determining the exact value of vertex distinguishing edge index χ's (G) of a graph G is difficult, even for simple classes of graphs such as paths, cycles,bipartite complete graphs, complete, graphs, and graphs with maximum degr
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