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JOURNALS // Trudy Instituta Matematiki i Mekhaniki UrO RAN // Archive

2012, Volume 18, Number 4

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Trudy Instituta Matematiki i Mekhaniki UrO RAN


Best approximation for the analytic continuation operator on the class of analytic functions in a ring
R. R. Akopyan
3
A constructive method for the solution of integral equations with Hilbert kernel
R. A. Aliev, A. F. Amrakhova
14
On the growth order of sequences of double rectangular Fourier sums for functions from the classes $\varphi(L)$
N. Yu. Antonov
26
On the approximation of the differentiation operator by linear bounded operators on the class of twice differentiable functions in the space $L_2(0,\infty)$
V. V. Arestov, M. A. Filatova
35
Jackson's exact inequality with a special module of continuity
A. G. Babenko, N. V. Dolmatova, Yu. V. Kryakin
51
Trigonometric analogs of the Szegő equiconvergence theorem for Fourier–Jacobi series
V. M. Badkov
68
Upper estimates for the error of approximation of derivatives in a finite element of Hsieh–Clough–Tocher type
N. V. Baidakova
80
On antiproximinal sets in Grothendieck spaces
V. S. Balaganskii
90
Synthesis of electromagnetic field on an antenna array, I
N. A. Baraboshkina, V. M. Pleshchev, N. I. Chernykh
104
Concealment characteristics for a moving object
V. I. Berdyshev
110
On the mechanics of helical flows in an ideal incompressible viscous continuous medium
V. P. Vereshchagin, Yu. N. Subbotin, N. I. Chernykh
120
Orders of approximation by local exponential splines
Yu. S. Volkov, E. G. Pytkeev, V. T. Shevaldin
135
Shape preserving conditions for quadratic spline interpolation in the sense of Subbotin and Marsden
Yu. S. Volkov, V. T. Shevaldin
145
An estimate of the geometric mean of the derivative of a polynomial in terms of its uniform norm on a closed interval
M. R. Gabdullin
153
Jackson–Nikol'skii inequality between the uniform and integral norms of algebraic polynomials on a Euclidean sphere
M. V. Deikalova, V. V. Rogozina
162
An analog of Rudin's theorem for continuous radial positive definite functions of several variables
A. V. Efimov
172
A stability criterion for optimal solutions of a minimax problem about a partition into an arbitrary number of subsets under varying cardinality of the initial set
E. E. Ivanko
180
On polyhedral estimates for reachable sets of differential systems with bilinear uncertainty
E. K. Kostousova
195
Nonnegativity set of smallest measure for polynomials with zero weighted mean value on a closed interval
S. V. Kuznetsov, K. S. Tikhanovtseva
211
Delsarte method in the problem on kissing numbers in high-dimensional spaces
N. A. Kuklin
224
On S. M. Nikol'skii type inequalities between different metrics
J. I. Mamedkhanov
240
Interpolation on a square with a minimum value of the uniform norm of the Laplace operator
S. I. Novikov
249
Best approximation of periodic functions of several variables from the classes $MB^\omega_{p,\theta}$ in the uniform metric
S. A. Stasyuk
258
One-sided widths of classes of smooth functions
Yu. N. Subbotin
267
On the question of the weak invariance of sets with respect to a differential inclusion generated by a control system
V. N. Ushakov, A. A. Zimovets
271
Generalized solutions of singular integro-differential equations in Banach spaces and their applications
M. V. Falaleev, S. S. Orlov
286
Tier mappings and ultrafilter-based transformations
A. G. Chentsov
298
On the exact values of mean $\nu$-widths of some classes of entire functions
M. Sh. Shabozov, G. A. Yusupov
315
From a Letter to the Editor
I. E. Simonov
328
Nikolai Nikolaevich Krasovskii
329
Vladimir Sergeevich Balaganskii
331


© Steklov Math. Inst. of RAS, 2025