RT Journal Article T1 Decompositions of periodic matrices into a sum of special matrices A1 Danchev, Peter A1 García, Esther A1 Gómez-Lozano, Miguel Ángel K1 Matrices (Matemáticas) K1 Grupos nilpotentes AB We study the problem of when a periodic square matrix of order n×n over an arbitrary field F is decomposable into the sum of a square-zero matrix and a torsion matrix and show that this decomposition can always be obtained for matrices of rank at least n/2 when F is either a field of prime characteristic, or the field of rational numbers, or an algebraically closed field of zero characteristic. We also provide a counterexample to such a decomposition when F equals the field of the real numbers. PB International Linear Algebra Society (ILAS) YR 2025 FD 2025 LK https://hdl.handle.net/10630/41065 UL https://hdl.handle.net/10630/41065 LA eng NO https://journals.uwyo.edu/index.php/ela/article/view/9099 NO https://journals.uwyo.edu/index.php/ela/about/submissions NO FQM264 DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 19 ene 2026