CITD-number for some graph operations
نویسندگان
چکیده
منابع مشابه
Global Forcing Number for Maximal Matchings under Graph Operations
Let $S= \{e_1,\,e_2, \ldots,\,e_m\}$ be an ordered subset of edges of a connected graph $G$. The edge $S$-representation of an edge set $M\subseteq E(G)$ with respect to $S$ is the vector $r_e(M|S) = (d_1,\,d_2,\ldots,\,d_m)$, where $d_i=1$ if $e_i\in M$ and $d_i=0$ otherwise, for each $i\in\{1,\ldots , k\}$. We say $S$ is a global forcing set for maximal matchings of $G$ if $...
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متن کاملIndex of Some Graph Operations
Let G = (V, E) be a graph. For e = uv ∈ E(G), nu(e) is the number of vertices of G lying closer to u than to v and nv(e) is the number of vertices of G lying closer to v than u. The GA2 index of G is defined as ∑ uv∈E(G) 2 √ nu(e)nv(e) nu(e)+nv(e) . We explore here some mathematical properties and present explicit formulas for this new index under several graph operations.
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2021
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/1724/1/012019