(a,d)-Continuous monotonic subgraph decomposition of K_n+1 and integral sum graphs G_(0,n)
نویسندگان
چکیده
منابع مشابه
Continuous Monotonic Decomposition of Tensor Product of Some Simple Graphs
The concept of continuous monotonic decomposition (CMD) was INTRODUCTION By a graph we mean a finite undirected graph without loops or multiple edges. Terms not defined here are used in the sense of Harary [1].
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A graph G is said to be an integral sum graph if its nodes can be given a labeling f with distinct integers, so that for any two distinct nodes u and v of G, uv is an edge of G if and only if f (u) + f (v) = f (w) for some node w in G. A node of G is called a saturated node if it is adjacent to every other node of G. We show that any integral sum graph which is not K3 has at most two saturated ...
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Given a set of integers S; G(S) = (S; E) is a graph, where the edge uv exists if and only if u+ v∈ S. A graph G = (V; E) is an integral sum graph or ISG if there exists a set S ⊂ Z such that G=G(S). This set is called a labeling of G. The main results of this paper concern regular ISGs. It is proved that all 2-regular graphs with the exception of C4 are integral sum graphs and that for every po...
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A graph is said to be a sum graph if there exists a set S of positive integers as its node set, with two nodes adjacent whenever their sum is in S. An integral sum graph is defined just as the sum graph, the difference being that S is a subset of 2~ instead of N*. The sum number of a given graph G is defined as the smallest number of isolated nodes which when added to G result in a sum graph. T...
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ژورنال
عنوان ژورنال: Tamkang Journal of Mathematics
سال: 2015
ISSN: 2073-9826,0049-2930
DOI: 10.5556/j.tkjm.46.2015.1432