منابع مشابه
Wiener numbers of random pentagonal chains
The Wiener index is the sum of distances between all pairs of vertices in a connected graph. In this paper, explicit expressions for the expected value of the Wiener index of three types of random pentagonal chains (cf. Figure 1) are obtained.
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Let G be a finite graph. A perfect matching in G is a selection of edges in G such that each vertex of G belongs to exactly one selected edge. Therefore, if the number of vertices in G is odd, then there is no perfect matching. We denote by K(G) the number of perfect matchings of £, and refer to it as the K number of G. By a polygonal chain Py, s we mean a finite graph obtained by concatenating...
متن کاملwiener numbers of random pentagonal chains
the wiener index is the sum of distances between all pairs of vertices in a connected graph. in this paper, explicit expressions for the expected value of the wiener index of three types of random pentagonal chains (cf. figure 1) are obtained.
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ژورنال
عنوان ژورنال: Journal of the Chungcheong Mathematical Society
سال: 2014
ISSN: 1226-3524
DOI: 10.14403/jcms.2014.27.2.277