%0 Journal Article %A N. V. Krylov %T Rubio de Francia extrapolation theorem and related topics in the theory of elliptic and parabolic equations. A~survey %J Algebra i analiz %D 2020 %P 5-38 %V 32 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2020_32_3_a1/ %G en %F AA_2020_32_3_a1