Pichugov S A

Publications in Math-Net.Ru

1. Letter to the Editor
   
   Mat. Zametki, 104:6 (2018),  953
2. Exact Constants in Jackson Inequalities for Periodic Differentiable Functions in the Space $L_\infty$
   
   Mat. Zametki, 96:2 (2014),  277–284
3. Kolmogorov-Type Inequalities for Norms of Riesz Derivatives of Functions of Several Variables with Laplacian Bounded in $L_\infty$ and Related Problems
   
   Mat. Zametki, 95:1 (2014),  3–17
4. Sharp Constant in Jackson's Inequality with Modulus of Smoothness for Uniform Approximations of Periodic Functions
   
   Mat. Zametki, 93:6 (2013),  932–938
5. Sharp Estimates of the Norms of Fractional Derivatives of Functions of Several Variables Satisfying Hölder Conditions
   
   Mat. Zametki, 87:1 (2010),  26–34
6. On inequalities of Landau–Kolmogorov–Hörmander type on the semi-axis
   
   Mat. Zametki, 65:2 (1999),  175–185
7. Additive inequalities for intermediate derivatives of differentiable mappings of Banach spaces
   
   Mat. Zametki, 63:3 (1998),  332–342
8. Sequences of operators that are bounded in measure
   
   Dokl. Akad. Nauk, 334:6 (1994),  696–698
9. Sequences of operators bounded in measure
   
   Mat. Sb., 185:1 (1994),  43–72
10. Estimates of norms of operators that are continuous in measure
    
    Mat. Zametki, 50:1 (1991),  146–148
11. Jung constants of the $l_p^n$-spaces
    
    Mat. Zametki, 48:4 (1990),  37–47
12. Jung's constant for the space $L_p$
    
    Mat. Zametki, 43:5 (1988),  604–614
13. Approximation of periodic functions in $L_p$ by linear positive methods and multiple moduli of continuity
    
    Mat. Zametki, 42:6 (1987),  776–785
14. On inequalities for polynomials with real roots
    
    Trudy Mat. Inst. Steklov., 180 (1987),  35–36
15. An exact inequality for the derivative of a trigonometric polynomial having only real zeros
    
    Mat. Zametki, 39:3 (1986),  330–336
16. Exact constant of approximation in the mean of Liouville's class by entire functions
    
    Izv. Vyssh. Uchebn. Zaved. Mat., 1980, no. 8,  63–65
17. Best linear approximation of some classes of differentiable periodic functions
    
    Mat. Zametki, 27:5 (1980),  683–689
18. On the multidimensional Jackson theorem for linear polynomial approximations
    
    Dokl. Akad. Nauk SSSR, 245:4 (1979),  792–794
19. Approximation of continuous functions on a segment by linear methods
    
    Mat. Zametki, 24:3 (1978),  343–348