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arxiv: 1704.02068 · v1 · pith:2HS2WGSDnew · submitted 2017-04-07 · 🧮 math.CO

Ordering of bicyclic graphs by matching energy

classification 🧮 math.CO
keywords matchinggraphsbicyclicenergyorderdefineddeterminedenergies
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Let $G$ be a simple graph of order $n$ and $\mu_{1},\mu_{2},\ldots,\mu_{n}$ be the roots of its matching polynomial. The matching energy is defined as the sum $\sum^{n}_{i=1}|\mu_{i}|$, which was introduced by Gutman and Wagner in 2012. In this paper, the graphs with the first five smallest matching energies among all bicyclic graphs for order $n>5$ are determined.

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