Cover Image

K-functionals and extreme problems of the theory of approximation for classes of analytic functions in the circle. I

Saved in:

Bibliographic Details
Date:	2022
Main Authors:	S. B. Vakarchuk, M. B. Vakarchuk
Format:	Article
Language:	English
Published:	2022
Series:	Ukrainian Mathematical Journal
Online Access:	http://jnas.nbuv.gov.ua/article/UJRN-0001336840
Tags:	Add Tag No Tags, Be the first to tag this record!
Journal Title:	Library portal of National Academy of Sciences of Ukraine \| LibNAS

Institution

Library portal of National Academy of Sciences of Ukraine | LibNAS

Similar Items

K-functionals and extreme problems of the theory of approximation of the classes of analytic functions in a circle. II
by: S. B. Vakarchuk, et al.
Published: (2022)

Generalized characteristics of smoothness and some extreme problems of the approximation theory of functions in the space L2 (R). I
by: S. B. Vakarchuk
Published: (2018)

Generalized characteristics of smoothness and some extreme problems of the approximation theory of functions in the space L2(R). II
by: S. B. Vakarchuk
Published: (2018)

Best approximation by &quot;angles&quot; of analytic in the unit bidisk functions
by: S. B. Vakarchuk, et al.
Published: (2015)

Approximation in the mean of the classes of functions in the space L2|(0,1);x| by the Fourier–Bessel sums and estimates of the values of their n-widths
by: S. Vakarchuk, et al.
Published: (2024)

On the Best Approximation in the Mean by Algebraic Polynomials with Weight and the Exact Values of Widths for the Classes of Functions
by: S. B. Vakarchuk, et al.
Published: (2013)

Exact constants in Jackson-type inequalities for the best mean square approximation in L_2(R) and exact values of mean nu-widths of the classes of functions
by: S. B. Vakarchuk
Published: (2016)

Jackson-type inequalities with generalized modulus of continuity and exact values of the n-widths of the classes of (ψ,β)-differential functions in L2. I
by: S. B. Vakarchuk
Published: (2016)

Widths of some classes of functions defined by the generalized moduli of continuity _in the space L_2
by: S. B. Vakarchuk
Published: (2017)

On the moduli of continuity and fractional-order derivatives in the problems of best mean-square approximations by entire functions of the exponential type on the entire real axis
by: S. B. Vakarchuk
Published: (2017)

Widths of classes of functions in the weight space L2,г(R),г=exp(−x2)
by: S. B. Vakarchuk
Published: (2022)

On the estimates of widths of the classes of functions defined by the generalized moduli of continuity and majorants in the weighted space L2x(0,1)
by: S. B. Vakarchuk
Published: (2019)

On the estimates of the values of various widths of classes of functions of two variables in the weight space L2,г(R2), г=exp(−x2 − y2)
by: S. B. Vakarchuk, et al.
Published: (2020)

On estimates of diameter values of classes of functions in the weight space L2,γ(R2), γ = exp(−x2 − y2)
by: S. B. Vakarchuk
Published: (2022)

Jackson-type inequalities with generalized modulus of continuity and exact values of the n-widths of the classes of (ψ,β)-differentiable functions in L2. II
by: S. B. Vakarchuk
Published: (2016)

Jackson-type inequalities with generalized modulus of continuity and exact values of the n-widths for the classes of (ψ,β)-differentiable functions in L2. III
by: B. S. Vakarchuk
Published: (2016)

On the Best Polynomial Approximations of Entire Transcendental Functions of Many Complex Variables in Some Banach Spaces
by: S. B. Vakarchuk, et al.
Published: (2014)

Estimates of the best m-term trigonometric approximations of classes of analytic functions
by: A. S. Serdiuk, et al.
Published: (2015)

Structural characteristics of functions from L_2 and the exact values of widths of some functional classes
by: S. B. Vakarchuk, et al.
Published: (2014)

Jackson-Type Inequalities for the Special Moduli of Continuity on the Entire Real Axis and the Exact Values of Mean ν-Widths for the Classes of Functions in the Space L2 (R)
by: S. B. Vakarchuk
Published: (2014)

Exact Values of Kolmogorov Widths for the Classes of Analytic Functions. I
by: V. V. Bodenchuk, et al.
Published: (2015)

Extremal decomposition problem for the complex plane with free poles on the circle
by: O. K. Bakhtin, et al.
Published: (2020)

About one extremal problem for projections of the points on unit circle
by: A. L. Targonskii
Published: (2018)

On total moduli of continuity for 2periodic functions of two variables in the space L_(2,2)
by: S. B. Vakarchuk, et al.
Published: (2017)

Exact Constants of the Best One Sided Approximations of the Sum Analytic Functions from Different Classes
by: V. A. Sorych, et al.
Published: (2022)

Exact Constants of the Best One Sided Approximations of the Sum Analytic Functions from Different Classes
by: Сорич, Віктор, et al.
Published: (2022)

Orthogonal Rational Functions on the Unit Circle with Prescribed Poles not on the Unit Circle
by: Bultheel, A., et al.
Published: (2017)

Ridge approximation of some classes of harmonic functions
by: V. F. Babenko, et al.
Published: (2013)

Rational approximation of classes of convolutions of periodic functions
by: S. O. Chaichenko
Published: (2013)

Pade approximants for some classes of multivariate functions
by: A. P. Holub, et al.
Published: (2017)

Theory of structure and thermodynamic functions of liquid 4He
by: I. O. Vakarchuk, et al.
Published: (2013)

On approximation of functions from Zygmund classes by biharmonic Poisson integrals
by: B. N. Borsuk, et al.
Published: (2021)

On approximation of functions from tne class NBV|a,b|
by: V. A. Mykhailets, et al.
Published: (2017)

On the Number of Zeros of Functions in Analytic Quasianalytic Classes
by: S. Sodin
Published: (2020)

The problem of extreme decomposition of a complex plane with fixed poles on a circle
by: L. V. Vyhivska
Published: (2018)

The problem of extremal decomposition of a complex plane with free poles on a circle
by: O. K. Bakhtin, et al.
Published: (2021)

On the Best Linear Methods of Approximation and the Exact Values of Widths for Some Classes of Analytic Functions in the Weighted Bergman Space
by: M. R. Langarshoev
Published: (2015)

Approximation of analytic functions by the partial sums of Taylor series
by: M. V. Haievskyi, et al.
Published: (2015)

Best Bilinear Approximations for the Classes of Functions of Many Variables
by: A. S. Romanjuk, et al.
Published: (2013)

Approximation of functions of the classes Srp,θ in the uniform metric
by: Ya. Yanchenko
Published: (2013)