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- W1981903721 abstract "Let G=(VG,EG) be a simple connected graph. The eccentric distance sum of G is defined as ξd(G)=∑v∈VGεG(v)DG(v), where εG(v) is the eccentricity of the vertex v and DG(v)=∑u∈VGd(u,v) is the sum of all distances from the vertex v. In this paper we first characterize the extremal trees among n-vertex conjugated trees (trees with a perfect matching) having the minimal and second minimal eccentric distance sums. Then we identify the trees with the minimal and second minimal eccentric distance sums among the n-vertex trees with matching number m. Finally, we characterize the extremal tree with the second minimal eccentric distance sum among the n-vertex trees of a given diameter. Consequently, we determine the trees with the third and fourth minimal eccentric distance sums among the n-vertex trees, which is a continuance study as the results in [G.H. Yu, L.H. Feng, A. Ilić, On the eccentric distance sum of trees and unicyclic graphs, J. Math. Anal. Appl. 375 (2011) 99–107]." @default.
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- W1981903721 date "2012-06-01" @default.
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- W1981903721 title "On the extremal values of the eccentric distance sum of trees" @default.
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- W1981903721 doi "https://doi.org/10.1016/j.jmaa.2012.01.022" @default.
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