Let MG(i,n) be a connected molecular graph without multiple edges on n vertices whose the minimum degree of vertices is I, where 1 <= i <= 4. One of the newest topological indices is the first Geometric-Arithmetic index. In this paper we determine the graph with the minimum and. the maximum value of first Geometric-Arithmetic index in the family of graphs MG(i,n), 1 <= i <= 3.
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Hanyang Univ, Res Inst Nat Sci, Wangsimni Ro 222, Seoul 04763, South KoreaHanyang Univ, Res Inst Nat Sci, Wangsimni Ro 222, Seoul 04763, South Korea
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S China Normal Univ, Dept Math, Guangzhou 510631, Guangdong, Peoples R ChinaS China Normal Univ, Dept Math, Guangzhou 510631, Guangdong, Peoples R China
Yuan, Yan
Zhou, Bo
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S China Normal Univ, Dept Math, Guangzhou 510631, Guangdong, Peoples R ChinaS China Normal Univ, Dept Math, Guangzhou 510631, Guangdong, Peoples R China
Zhou, Bo
Trinajstic, Nenad
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Rugjer Boskovic Inst, Zagreb 10002, CroatiaS China Normal Univ, Dept Math, Guangzhou 510631, Guangdong, Peoples R China
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Univ Carlos III Madrid, Dept Matemat, Ave Univ 30, Madrid 28911, SpainUniv Carlos III Madrid, Dept Matemat, Ave Univ 30, Madrid 28911, Spain
Rodriguez, Jose M.
Sigarreta, Jose M.
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Univ Autonoma Guerrero, Fac Matemat, Carlos E Adame 54 Col Garita, Acapulco 39650, Gro, MexicoUniv Carlos III Madrid, Dept Matemat, Ave Univ 30, Madrid 28911, Spain