Order of the best approximation of partial differential operators
Matematičeskie zametki, Tome 48 (1990) no. 4, pp. 115-121
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@article{MZM_1990_48_4_a12,
author = {O. A. Timoshin},
title = {Order of the best approximation of partial differential operators},
journal = {Matemati\v{c}eskie zametki},
pages = {115--121},
publisher = {mathdoc},
volume = {48},
number = {4},
year = {1990},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/MZM_1990_48_4_a12/}
}
O. A. Timoshin. Order of the best approximation of partial differential operators. Matematičeskie zametki, Tome 48 (1990) no. 4, pp. 115-121. http://geodesic.mathdoc.fr/item/MZM_1990_48_4_a12/