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math.RA2025
Groupoids of finitely aligned higher-rank graphs via filters and graph morphisms
Lisa Orloff Clark, Malcolm Jones
Path and boundary-path groupoids of finitely aligned higher-rank graphs are often constructed using either filters or graph morphisms. We generalise the graph morphism approach to…
math.RA2025
Singular Ideals over arbitrary fields for the two- and three-headed snakes
Ramla Abdellatif, Lisa Orloff Clark, Roy Jansen +1
We study the Steinberg algebra with coefficients in an arbitrary field K for the two- and three-headed snake groupoids, which are basic examples of non-Hausdorff groupoids. We are…