%0 Journal Article %A A. A. Shlapunov %T On the Approximation of Solutions to the Heat Equation in the Lebesgue Class $L^2$ by More Regular Solutions %J Matematičeskie zametki %D 2022 %P 778-794 %V 111 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2022_111_5_a10/ %G ru %F MZM_2022_111_5_a10