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arxiv: 1008.2557 · v2 · pith:E2BRPMVTnew · submitted 2010-08-15 · 🧮 math.CO

A Note on the Critical Group of a Line Graph

classification 🧮 math.CO
keywords criticalgraphgroupdirectedlinenoteanswersarkiv
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This note answers a question posed by Levine in arkiv:math.CO/0906.2809. The main result is Theorem 1 which shows that under certain circumstances a critical group of a directed graph is the quotient of a critical group of its directed line graph.

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