Geodesic
A~remark concerning a~problem of S.\,M.~Nikolskii
Zapiski Nauchnykh Seminarov POMI, Investigations on linear operators and function theory. Part IX, Tome 92 (1979), pp. 312-313

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The note deals with some new aspects of the well-known principle that the rate of approximation of a function by polynomials is determined by and determines some smoothness properties of this function. 
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     author = {N. A. Shirokov},
     title = {A~remark concerning a~problem of {S.\,M.~Nikolskii}},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {312--313},
     publisher = {mathdoc},
     volume = {92},
     year = {1979},
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     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_92_a26/}
}
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N. A. Shirokov. A~remark concerning a~problem of S.\,M.~Nikolskii. Zapiski Nauchnykh Seminarov POMI, Investigations on linear operators and function theory. Part IX, Tome 92 (1979), pp. 312-313. http://geodesic.mathdoc.fr/item/ZNSL_1979_92_a26/