@article{RM_2024_79_5_a2, author = {M. Ya. Mazalov and P. V. Paramonov and K. Yu. Fedorovskiy}, title = {Criteria for $C^m$-approximability of functions by solutions of homogeneous second-order elliptic equations on compact subsets of $\mathbb{R}^N$ and related capacities}, journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova}, pages = {847--917}, publisher = {mathdoc}, volume = {79}, number = {5}, year = {2024}, language = {en}, url = {http://geodesic.mathdoc.fr/item/RM_2024_79_5_a2/} }