Skornyakov, L. A. The axiomatizability of a class of injective polygons. (Russian) Zbl 0418.03021 Tr. Semin. Im. I.G. Petrovskogo 4, 233-239 (1978). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 Documents MSC: 03C05 Equational classes, universal algebra in model theory 08C10 Axiomatic model classes 08B30 Injectives, projectives 16D50 Injective modules, self-injective associative rings 16Gxx Representation theory of associative rings and algebras 20M99 Semigroups 08B25 Products, amalgamated products, and other kinds of limits and colimits 16P40 Noetherian rings and modules (associative rings and algebras) Keywords:axiomatizability; elementary equivalence of the direct sum and the direct product of modules; axiomatizable class of injective modules; polygons on a monoid; Noetherian ring PDFBibTeX XMLCite \textit{L. A. Skornyakov}, Tr. Semin. Im. I. G. Petrovskogo 4, 233--239 (1978; Zbl 0418.03021)