%0 Journal Article %A A. I. Lenin %A O. M. Makarov %T Accelerated algorithms for multiplication of a~transposed vector by matrices $\begin{Vmatrix}G&O\\O&G_T\end{Vmatrix}$ and $\|GG^T\|$ %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 1980 %P 34-38 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_1980_1_a5/ %G ru %F IVM_1980_1_a5