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Gradual and Fuzzy Modules: Functor Categories

Author

Listed:
  • Josefa M. García

    (Department of Applied Mathematics, University of Granada, E-18071 Granada, Spain)

  • Pascual Jara

    (Department of Algebra and IEMath, Instituto de Matemáticas, University of Granada, E-18071 Granada, Spain)

Abstract

The categorical treatment of fuzzy modules presents some problems, due to the well known fact that the category of fuzzy modules is not abelian, and even not normal. Our aim is to give a representation of the category of fuzzy modules inside a generalized category of modules, in fact, a functor category, Mod − P , which is a Grothendieck category. To do that, first we consider the preadditive category P , defined by the interval P = ( 0 , 1 ] , to build a torsionfree class J in Mod − P , and a hereditary torsion theory in Mod − P , to finally identify equivalence classes of fuzzy submodules of a module M with F-pair, which are pair ( G , F ) , of decreasing gradual submodules of M , where G belongs to J , satisfying G = F d , and ∪ α F ( α ) is a disjoint union of F ( 1 ) and F ( α ) \ G ( α ) , where α is running in ( 0 , 1 ] .

Suggested Citation

  • Josefa M. García & Pascual Jara, 2022. "Gradual and Fuzzy Modules: Functor Categories," Mathematics, MDPI, vol. 10(22), pages 1-21, November.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:22:p:4272-:d:973413
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