TY - JOUR AU - Silva, Fernando C. TI - Matrices with prescribed characteristic polynomial and submatrices JO - Portugaliae mathematica PY - 1987 SP - 261 EP - 264 VL - 44 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PORMA_1987__44_3_115587/ LA - en ID - PORMA_1987__44_3_115587 ER -