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Removing sources from higher-rank graphs

Cynthia Farthing
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Abstract

For a higher-rank graph $Λ$ with sources we detail a construction that creates a higher-rank graph $\barΛ$ that does not have sources and contains $Λ$ as a subgraph. Furthermore, when $Λ$ is row-finite, the Cuntz-Krieger algebra of $Λ$ is a full corner of $C^*(\barΛ)$, the Cuntz-Krieger algebra of $\barΛ$.

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Cynthia Farthing. 2006-04-03. Removing sources from higher-rank graphs. https://arxiv.org/abs/math/0603037

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