%0 Journal Article %A Ladecký, Martin %A Pultarová, Ivana %A Zeman, Jan %T Guaranteed two-sided bounds on all eigenvalues of preconditioned diffusion and elasticity problems solved by the finite element method %J Applications of Mathematics %D 2021 %P 21-42 %V 66 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/AM.2020.0217-19/ %R 10.21136/AM.2020.0217-19 %G en %F 10_21136_AM_2020_0217_19