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Resumen de Equivalent groupoids have Morita equivalent Steinberg algebras

Lisa Orloff Clark, Aidan Sims

  • Let G and H be ample groupoids and let R be a commutative unital ring. We show that if G and H are equivalent in the sense of Muhly–Renault–Williams, then the associated Steinberg algebras are Morita equivalent. We deduce that collapsing a “collapsible subgraph” of a directed graph in the sense of Crisp and Gow does not change the Morita-equivalence class of the associated Leavitt path R -algebra, and therefore a number of graphical constructions which yield Morita equivalent C⁎-algebras also yield Morita equivalent Leavitt path algebras.


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