2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/228356This paper is a survey on invariants of representations of quivers and their generalizations. We present the description of generating systems for invariants and relations between generators.31 pages; v2. Formulations of Theorems 3.16 and 5.9 are correctedRepresentation TheoryAlgebraic Geometry13A50; 14L24; 16G20; 16R30Representations of quivers, their generalizations and invariantstext