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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
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