Geodesic
On the Converse Theorem of Approximation in Various Metrics for Nonperiodic Functions
Publications de l'Institut Mathématique, _N_S_95 (2014) no. 109, p. 161 Cet article a éte moissonné depuis la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

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The modulus of smoothness in the norm of space $L_q$ of nonperiodic functions of several variables is estimated by best approximations by entire functions of exponential type in the metric of space $L_p$, $1\leq p\leq q\infty$.
Classification : 42B99 
@article{PIM_2014_N_S_95_109_a11,
     author = {Milo\v{s} Tomi\'c},
     title = {On the {Converse} {Theorem} of {Approximation} in {Various} {Metrics} for {Nonperiodic} {Functions}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {161 },
     year = {2014},
     volume = {_N_S_95},
     number = {109},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PIM_2014_N_S_95_109_a11/}
}
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Miloš Tomić. On the Converse Theorem of Approximation in Various Metrics for Nonperiodic Functions. Publications de l'Institut Mathématique, _N_S_95 (2014) no. 109, p. 161 . http://geodesic.mathdoc.fr/item/PIM_2014_N_S_95_109_a11/