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math.CA2021★ 1 cited
On estimates of the order of approximation of functions of several variables in the anisotropic Lorentz-Karamata space
Gabdolla Akishev
In this paper we consider anisotropic Lorentz-Karamata space of periodic functions of variables and Nikol'skii--Besov's class . In this paper, we establish order-sharp est…
math.CA2021★ 1 cited
On exact estimates of the order of approximation of functions of several variables in the anisotropic Lorentz-Zygmund space
Gabdolla Akishev
In this paper we consider anisotropic Lorentz-Zyg\-mu\-nd space of periodic functions of variables and Niko…
math.CA2021★ 1 cited
Estimates of the order of approximation of functions of several variables in the generalized Lorentz space
Gabdolla Akishev
In this paper we consider anisotropic symmetric space of periodic functions of variables, in particular, the generalized Lorentz space $L_{\barψ,\barτ}^{*}(\m…