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An integer additive set-labeling (IASL) of a graph $G$ is an injective function $f:V(G)\\to \\mathcal{P}(\\mathbb{N}_0)$ such that the induced function $f^+:E(G) \\to \\mathcal{P}(\\mathbb{N}_0)$ is defined by $f^+ (uv) = f(u)+ f(v)$, where $f(u)+f(v)$ is the sum set of $f(u)$ and $f(v)$. An IASL $f$ is said to be an integer additive set-indexer (IASI) of a graph $G$ if the induced edge function $f^+$ is also injective. 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A. Germina, K. P. Chithra, N. K. Sudev","submitted_at":"2015-03-18T10:05:15Z","abstract_excerpt":"Let $\\mathbb{N}_0$ be the set of all non-negative integers, let $X\\subset \\mathbb{N}_0$ and $\\mathcal{P}(X)$ be the the power set of $X$. An integer additive set-labeling (IASL) of a graph $G$ is an injective function $f:V(G)\\to \\mathcal{P}(\\mathbb{N}_0)$ such that the induced function $f^+:E(G) \\to \\mathcal{P}(\\mathbb{N}_0)$ is defined by $f^+ (uv) = f(u)+ f(v)$, where $f(u)+f(v)$ is the sum set of $f(u)$ and $f(v)$. An IASL $f$ is said to be an integer additive set-indexer (IASI) of a graph $G$ if the induced edge function $f^+$ is also injective. 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