%0 Journal Article %A M. M. Kokurin %T Necessary and sufficient conditions for the polynomial convergence of the quasi-reversibility and finite-difference methods for an ill-posed Cauchy problem with exact data %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 2015 %P 2027-2041 %V 55 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_2015_55_12_a5/ %G ru %F ZVMMF_2015_55_12_a5