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Збірник праць Інституту математики Національної академії наук України. 2015, 12 (4)
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Transactions of Institute of Mathematics, the NAS of Ukraine
2015. Issue 12
(4)
Змiст
.
The necessary conditions of convergence for a class of two-dimensional continued fractions with complex elements
.
Exact estimates of products of internal radii of non-overlapping domains in the complex plane
.
Approximation of classes of ψ-differentiated functions by the Fourier sums
.
Convergence criteria for periodic branched continued fractions of a special form
.
Best approximation by "angles" of analytic in the unit bidisk functions
.
On Lebesgue continuity of the Vallée-Poussin sums on classes CψC
.
Pade type approximants for some special series of two variables
.
Orthoprojective widths of classes Lψβ,p of periodic functions in the space Lq
.
Lebesgue type inequalities for interpolation analogues of Valle Poussin sums on sets of infinitely differentiable functions
.
Extreme partition the complex plane and inequalities for products of internal radii of domains
.
On the convergence of the Padé approximants of q-analogs of exponent
.
Estimates of a group of φ-deviations of analytic functions
.
Linear widths of classes SΩp,θB of periodic functions of several variables
.
Restrictions for order of q-monotone approximation of periodic functions
.
The shadow problem for a family of convex sets
.
Estimates of orthoprojection widths of classes BΩ∞,θ of periodic functions of several variables with given majorant of the mixed moduli of continuity
.
The Pompéiu-Landau-Szasz extremal problem for bounded holomorphic functions in bidisk
.
Two properties of the Thiele reciprocal derivative
.
Entropy numbers and Kolmogorov widths of Nikol'skii-Besov classes of periodic functions of two variables in the space L∞
.
Nonlinear approximation in spaces of multiple sequences
.
Supplement to F. Wiener sieve theorem
.
Asymptotic behaviour of the Orlicz-Sobolev classes at infinite
.
Set of measure zero containing spheres of every radius
.
On best nonsymmetric L1-approximations of some classes of convolutions with generalized splines
.
Grid-algorithms on classes of (ψ,β)-differentiable functions
.
Integral theorems for monogenic functions in commutative algebras
.
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