RT journal article T1 Refinement monoids and adaptable separated graphs A1 Ara, Pere A1 Bosa, Joan A1 Pardo Espino, Enrique A2 Matemáticas K1 Steinberg algebra K1 Refinement monoid K1 Type semigroup AB We define a subclass of separated graphs, the class of adaptable separated graphs, and study their associated monoids. We show that these monoids are primely generated conical refinement monoids, and we explicitly determine their associated I-systems. We also show that any finitely generated conical refinement monoid can be represented as the monoid of an adaptable separated graph. These results provide the first step toward an affirmative answer to the Realization Problem for von Neumann regular rings, in the finitely generated case. PB arXiv.org YR 2019 FD 2019-04-08 LK http://hdl.handle.net/10498/21181 UL http://hdl.handle.net/10498/21181 LA eng NO First, second and third authors are partially supported by the DGI-MINECO and European Regional Development Fund, jointly, through grants MTM2014-53644-P and MTM2017-83487-P. First and second au- thor acknowledge support from the Spanish Ministry of Economy and Competitiveness, through the Mar ́ıa de Maeztu Programme for Units of Excellence in R&D (MDM-2014-0445). Third author was partially supported by PAI III grant FQM-298 of the Junta de Andaluc ́ıa. DS Repositorio Institucional de la Universidad de Cádiz RD 13-nov-2026