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Eccentric and Total Eccentric Connectivity Indices of Caterpillars
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نویسنده
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FATHALIKHANI KHADIJEH ,YOUSEFI-AZARI HASSAN
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منبع
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iranian journal of mathematical chemistry - 2011 - دوره : 2 - شماره : 1 - صفحه:39 -44
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چکیده
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Consider a simple connected graph g with the vertex set v(g). the eccentric and total connectivity indices of g are defined as ?^c (g)=?_(v?v(g))???ec?_g (v) ?deg?_g (v)? and ec(g)=?_(v?v(g))???ec?_g (v) ?, respectively. here, ?deg?_g (v) denotes the degree of a vertex v and ?ec?_g (v) is its eccentricity. in this paper, these two indices are calculated for a given arbitrary caterpillar.
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کلیدواژه
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Eccentric connectivity index ,total eccentricity index ,caterpillar
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آدرس
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university of tehran, ایران, university of tehran, ایران
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Authors
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