The eccentricity of a vertex v in a graph is the maximum of the distances from v to all other vertices. The diameter of a graph is the maximum of the eccentricities of its vertices. Fix the parameters n, d, c. Over all graphs with order n and diameter d, we determine the maximum (within 1) and the minimum of the number of vertices with eccentricity c.
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Shandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R ChinaShandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R China
Li, Gengji
Zeng, Cheng
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Shandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R ChinaShandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R China
Zeng, Cheng
Pan, Xiangrui
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Shandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R ChinaShandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R China
Pan, Xiangrui
Li, Longyu
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Shandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R ChinaShandong Technol & Business Univ, Sch Math & Informat Sci, Yantai 264003, Shandong, Peoples R China
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Guizhou Univ Finance & Econ, Coll Big Data Stat, Guiyang 550025, Guizhou, Peoples R ChinaGuizhou Univ Finance & Econ, Coll Big Data Stat, Guiyang 550025, Guizhou, Peoples R China
Li, Xingfu
Yu, Guihai
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Guizhou Univ Finance & Econ, Coll Big Data Stat, Guiyang 550025, Guizhou, Peoples R ChinaGuizhou Univ Finance & Econ, Coll Big Data Stat, Guiyang 550025, Guizhou, Peoples R China