Removing sources from higher-rank graphs

Details Removing sources from higher-rank graphs Removing sources from higher-rank graphs

2006-03-02

arxiv.org/abs/math/0603037v2

Mathematics

Operator Algebras

34 pages, uses XY-pic, rewrote Theorem 3.24, added Theorem 3.26, corrected typos

Scientific paper

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

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