RT journal article T1 Refinement monoids with weak comparability and applications to regular rings and C*-algebras A1 Ara, P. A1 Pardo Espino, Enrique A2 Matemáticas AB We prove a cancellation theorem for simple re nement monoidssatisfying the weak comparability condition, rst introduced by K.C. O'Mearain the context of von Neumann regular rings. This result is then applied tovon Neumann regular rings and C -algebras of real rank zero via the monoidof isomorphism classes of nitely generated projective modules. PB American Mathematical Society SN 0002-9939 YR 1996 FD 1996-01-01T00:00:00Z LK http://hdl.handle.net/10498/16077 UL http://hdl.handle.net/10498/16077 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026