TY - JOUR AU - Valerio, Vladimiro TI - On the partitioned matrix $\begin{pmatrix}O&A\\A^\ast &Q\end{pmatrix}$ and its associated system $AX=T, A^\ast Y+QX = Z$ JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 1981 SP - 177 EP - 184 VL - 15 IS - 2 PB - Centrale des revues, Dunod-Gauthier-Villars PP - Montreuil UR - https://geodesic-test.mathdoc.fr/item/M2AN_1981__15_2_177_0/ LA - en ID - M2AN_1981__15_2_177_0 ER -