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Irregularity Strength of Regular Graphs [PDF]
Let $G$ be a simple graph with no isolated edges and at most one isolated vertex. For a positive integer $w$, a $w$-weighting of $G$ is a map $f:E(G)\rightarrow \{1,2,\ldots,w\}$. An irregularity strength of $G$, $s(G)$, is the smallest $w$ such that there is a $w$-weighting of $G$ for which $\sum_{e:u\in e}f(e)\neq\sum_{e:v\in e}f(e)$ for all pairs of
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The irregularity strength of circulant graphs
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Baril, Jean-Luc +2 more
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This study discussed the influence of fiber length distribution on yarn qualities (yarn irregularity and strength) based on simulation on fiber random arrangement.
Zhan Jiang +4 more
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Total vertex irregularity strength of trees with maximum degree five
In 2010, Nurdin, Baskoro, Salman and Gaos conjectured that the total vertex irregularity strength of any tree T is determined only by the number of vertices of degrees 1, 2 and 3 in T. This paper will confirm this conjecture by considering all trees with
S. Susilawati +2 more
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The irregularity strength of tP3
The irregularity strength \(s(G)\) of a simple graph \(G\) is the smallest number such that the edges of \(G\) may be assigned weights \(\leq s(G)\) in such a way as to obtain distinct weight sums at each vertex. It is shown by elementary arguments in additive number theory that for \(G=tP_ 3\), the disjoint union of \(t\) paths of length 3, \([(15t-1)/
Kinch, Lael, Lehel, Jenő
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The Modular Irregularity Strength of C_n⊙mK_1
Let G(V, E) be a graph with order n with no component of order 2. An edge k-labeling α: E(G) →{1,2,…,k} is called a modular irregular k-labeling of graph G if the corresponding modular weight function wt_ α:V(G) → Z_n defined by wt_ α(x) =Ʃ_(xyϵE(G)) α ...
Putu Kartika Dewi
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The irregularity strength of tKp
The irregularity strength of a simple graph is the smallest integer for which the edges may be assigned weights not exceeding it, such that the weight sums of adjacent edges are different at all vertices. A general formula is obtained for the irregularity strength of disjoint unions of identical complete graphs.
Jendroľ, Stanislav, Tkáč, Michal
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Irregularity strength of trees
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Amar, D., Togni, O.
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On irregularity strength of disjoint union of friendship graphs
We investigate the vertex total and edge total modication of the well-known irregularity strength of graphs. We have determined the exact values of the total vertex irregularity strength and the total edge irregularity strength of a disjoint union of ...
Ali Ahmad, Martin Baca, Muhammad Numan
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Irregularity strength of digraphs
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Ferrara, Mike +3 more
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