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Refinement monoids and adaptable separated graphs
Author(s) -
Pere Ara,
Joan Bosa,
Enrique Pardo
Publication year - 2019
Publication title -
semigroup forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 38
eISSN - 1432-2137
pISSN - 0037-1912
DOI - 10.1007/s00233-019-10077-2
Subject(s) - monoid , mathematics , syntactic monoid , von neumann architecture , free monoid , conical surface , subclass , graph , combinatorics , realization (probability) , algebra over a field , discrete mathematics , pure mathematics , statistics , geometry , antibody , immunology , biology
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.

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