Works matching AU Pichugov, S.
Results: 20
Erratum to: Sharp Constant in Jackson's Inequality with Modulus of Smoothness for Uniform Approximations of Periodic Functions.
- Published in:
- 2018
- By:
- Publication type:
- Correction Notice
Exact constants in Jackson inequalities for periodic differentiable functions in the space L.
- Published in:
- Mathematical Notes, 2014, v. 96, n. 1/2, p. 261, doi. 10.1134/S000143461407027X
- By:
- Publication type:
- Article
Kolmogorov-type inequalities for norms of Riesz derivatives of functions of several variables with Laplacian bounded in L and related problems.
- Published in:
- Mathematical Notes, 2014, v. 95, n. 1/2, p. 3, doi. 10.1134/S0001434614010015
- By:
- Publication type:
- Article
Sharp constant in Jackson's inequality with modulus of smoothness for uniform approximations of periodic functions.
- Published in:
- Mathematical Notes, 2013, v. 93, n. 5/6, p. 917, doi. 10.1134/S0001434613050295
- By:
- Publication type:
- Article
Sharp estimates of the norms of fractional derivatives of functions of several variables satisfying Hölder conditions.
- Published in:
- Mathematical Notes, 2010, v. 87, n. 1/2, p. 23, doi. 10.1134/S0001434610010049
- By:
- Publication type:
- Article
Marchaud's Inequality for Multiple Modules of Continuity in Metric Spaces.
- Published in:
- Ukrainian Mathematical Journal, 2020, v. 71, n. 12, p. 1959, doi. 10.1007/s11253-020-01758-1
- By:
- Publication type:
- Article
Multiple Modules of Continuity and the Best Approximations of Periodic Functions in Metric Spaces.
- Published in:
- Ukrainian Mathematical Journal, 2018, v. 70, n. 5, p. 806, doi. 10.1007/s11253-018-1534-8
- By:
- Publication type:
- Article
Nikol'skii-Stechkin-Type Inequalities for the Increments of Trigonometric Polynomials in Metric Spaces.
- Published in:
- Ukrainian Mathematical Journal, 2017, v. 69, n. 5, p. 831, doi. 10.1007/s11253-017-1399-2
- By:
- Publication type:
- Article
Some Properties of the Moduli of Continuity of Periodic Functions in Metric Spaces.
- Published in:
- Ukrainian Mathematical Journal, 2017, v. 68, n. 12, p. 1920, doi. 10.1007/s11253-017-1338-2
- By:
- Publication type:
- Article
Smoothness of functions in the metric spaces L.
- Published in:
- Ukrainian Mathematical Journal, 2013, v. 64, n. 9, p. 1382, doi. 10.1007/s11253-013-0723-8
- By:
- Publication type:
- Article
Lower bounds for the deviations of the best linear methods of approximation of continuous functions by trigonometric polynomials.
- Published in:
- Ukrainian Mathematical Journal, 2012, v. 64, n. 5, p. 752, doi. 10.1007/s11253-012-0676-3
- By:
- Publication type:
- Article
Inverse Jackson theorems in spaces with integral metric.
- Published in:
- Ukrainian Mathematical Journal, 2012, v. 64, n. 3, p. 394, doi. 10.1007/s11253-012-0654-9
- By:
- Publication type:
- Article
Inequalities for trigonometric polynomials in spaces with integral metric.
- Published in:
- Ukrainian Mathematical Journal, 2012, v. 63, n. 12, p. 1883, doi. 10.1007/s11253-012-0619-z
- By:
- Publication type:
- Article
On the Jackson theorem for periodic functions in metric spaces with integral metric. II.
- Published in:
- Ukrainian Mathematical Journal, 2012, v. 63, n. 11, p. 1733, doi. 10.1007/s11253-012-0609-1
- By:
- Publication type:
- Article
Sharp Kolmogorov-type inequalities for norms of fractional derivatives of multivariate functions.
- Published in:
- Ukrainian Mathematical Journal, 2010, v. 62, n. 3, p. 343, doi. 10.1007/s11253-010-0358-y
- By:
- Publication type:
- Article
On Kolmogorov-type inequalities for fractional derivatives of functions of two variables.
- Published in:
- Ukrainian Mathematical Journal, 2008, v. 60, n. 6, p. 977, doi. 10.1007/s11253-008-0099-3
- By:
- Publication type:
- Article
Exact inequalities for derivatives of functions of low smoothness defined on an axis and a semiaxis.
- Published in:
- Ukrainian Mathematical Journal, 2006, v. 58, n. 3, p. 325, doi. 10.1007/s11253-006-0069-6
- By:
- Publication type:
- Article
Approximation of sine-shaped functions by constants in the spacesL<sub>p</sub>,<1.
- Published in:
- Ukrainian Mathematical Journal, 2004, v. 56, n. 6, p. 882, doi. 10.1007/s11253-005-0071-4
- By:
- Publication type:
- Article
Kolmogorov-type inequalities for mixed derivatives of functions of many variables.
- Published in:
- Ukrainian Mathematical Journal, 2004, v. 56, n. 5, p. 699, doi. 10.1007/s11253-005-0066-1
- By:
- Publication type:
- Article
Comparison of Exact Constants in Inequalities for Derivatives of Functions Defined on the Real Axis and a Circle.
- Published in:
- Ukrainian Mathematical Journal, 2003, v. 55, n. 5, p. 699, doi. 10.1023/B:UKMA.0000010250.39603.d4
- By:
- Publication type:
- Article