Approximation of functions from the class C,∞ by Poisson integrals in the uniform metric

By Zhyhallo T.   Kharkevych Yu.  

Ukrainian Mathematical Journal, Vol. 61, Iss. 12, 2009-12 ,pp. : 1893-1914

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Approximation of conjugate differentiable functions by their Abel–Poisson integrals

By Zhyhallo K.   Kharkevych Yu.  

Ukrainian Mathematical Journal, Vol. 61, Iss. 1, 2009-01 ,pp. : 86-98

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Approximation of Differentiable Periodic Functions by Their Biharmonic Poisson Integrals

By Zhyhallo K.M.   Kharkevych Y.I.  

Ukrainian Mathematical Journal, Vol. 54, Iss. 9, 2002-09 ,pp. : 1462-1470

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Approximation of ( ψ , β )-differentiable functions of low smoothness by biharmonic poisson integrals

By Zhyhallo K.   Kharkevych Yu.  

Ukrainian Mathematical Journal, Vol. 63, Iss. 12, 2012-05 ,pp. : 1820-1844

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Approximation of (, )-Differentiable Functions Defined on the Real Axis by Abel-Poisson Operators

By Kharkevych Yu.   Zhyhallo T.  

Ukrainian Mathematical Journal, Vol. 57, Iss. 8, 2005-08 ,pp. : 1297-1315

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