Bondarenko, Vitaliĭ M. On a connection between Drozd and Brenner quadratic forms (the case of unbounded posets). (English. Russian original) Zbl 1150.16302 Ukr. Mat. Visn. 3, No. 2, 153-165 (2006); translation in Ukr. Math. Bull. 3, No. 2, 145-156 (2006). Summary: We consider two quadratic forms defined on partially ordered sets; one of them was introduced by Yu. A. Drozd, and the other one by Sh. Brenner. These forms play an important role in the modern representation theory. We find a relationship between them in the case of infinite unbounded partially ordered sets. MSC: 16G20 Representations of quivers and partially ordered sets 15A63 Quadratic and bilinear forms, inner products Keywords:unbounded partially ordered sets; Drozd quadratic forms; Brenner quadratic forms; weakly positive quadratic forms PDFBibTeX XMLCite \textit{V. M. Bondarenko}, Ukr. Mat. Visn. 3, No. 2, 153--165 (2006; Zbl 1150.16302); translation in Ukr. Math. Bull. 3, No. 2, 145--156 (2006)