‎the global generalized minimum residual (gl-gmres)‎ ‎method is examined for solving the generalized sylvester matrix equation‎ ‎[sumlimits_{i = 1}^q {a_i } xb_i = c.]‎ ‎some new theoretical results are elaborated for‎ ‎the proposed method by employing the schur complement‎. ‎these results can be exploited to establish new convergence properties‎ ‎of the gl-gmres method for solving genera...

We study the mean properties of a large representative sample 217 galaxies showing CIII] emission at $2<z<4$, selected from parent $\sim$750 main-sequence star-forming in VANDELS survey. These emitters have broad range UV luminosities, thus allowing detailed stacking analysis to characterize their stellar mass, star formation rate (SFR) and metallicity, as function line ratios, EWs, carbon-to-o...