Grandis, Marco Symetrisations de categories et factorisations quaternaires. (French) Zbl 0418.18003 Atti Accad. Naz. Lincei, Mem., Cl. Sci. Fis. Mat. Nat., VIII. Ser., Sez. I 14, 135-207 (1977). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 8 Documents MSC: 18B10 Categories of spans/cospans, relations, or partial maps 18E10 Abelian categories, Grothendieck categories Keywords:categories of relations; symmetrizations of categories and functors; four-maps factorizations; subquotients; abelian paracompactness; partitions of unity; fixed ideal; maximal ideal; adjoint functors; categories of modules; reflection; universal compact ringed space Citations:Zbl 0201.356; Zbl 0393.54017 PDFBibTeX XMLCite \textit{M. Grandis}, Atti Accad. Naz. Lincei, Mem., Cl. Sci. Fis. Mat. Nat., VIII. Ser., Sez. I 14, 135--207 (1977; Zbl 0418.18003)