Persons: Kofanov, Vladimir Alexandrovich

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Kofanov, Vladimir Alexandrovich

Professor

Doctor of physico-mathematical sciences (2003)

Birth date:

11.08.1949

E-mail:

Keywords:

Inequalities of Kolmogorov and Bernstein type, polynomials, splines, approximation of the function classes.

UDC:

, 517.5

Subject:

1. Inequalities for derivatives
2. The extremal problems of the theory of approximation

Biography

2003 — thesis of doctor degree "Inequalities of Kolmogorov type and Extremal Problems of Analysis"

Main publications:

V.A. Kofanov, “Exact inequalities of Kolmogorov type and comparison of Korneichuk's $\sigma$-rearrengement”, EJA, 9:1 (2003), 67–94
V.A. Kofanov, “Sharp inequalities of Bernstein and Kolmogorov type”, EJA, 11:2 (2005), 131–145
V.A. Kofanov, “Some extremal problems of various metrics and sharp inequalities of Nagy–Kolmogorov type”, EJA, 16:4 (2010), 313–334

	Publications in Math-Net.Ru	Citations
	2002
1.	V. A. Kofanov, “On exact inequalities of Kolmogorov type”, Mat. Fiz. Anal. Geom., 9:3 (2002), 412–419	2
	1999
2.	V. F. Babenko, V. A. Kofanov, S. A. Pichugov, “On inequalities of Landau–Kolmogorov–Hörmander type on the semi-axis”, Mat. Zametki, 65:2 (1999), 175–185 ; Math. Notes, 65:2 (1999), 144–152
	1998
3.	V. F. Babenko, V. A. Kofanov, S. A. Pichugov, “Additive inequalities for intermediate derivatives of differentiable mappings of Banach spaces”, Mat. Zametki, 63:3 (1998), 332–342 ; Math. Notes, 63:3 (1998), 293–301	2
	1985
4.	V. F. Babenko, V. A. Kofanov, “Polynomials of fixed sign that deviate least from zero in the spaces $L_p$”, Mat. Zametki, 37:2 (1985), 176–185 ; Math. Notes, 37:2 (1985), 99–105	3
	1983
5.	V. A. Kofanov, “Approximation in the mean of classes of differentiable functions by algebraic polynomials”, Izv. Akad. Nauk SSSR Ser. Mat., 47:5 (1983), 1078–1090 ; Math. USSR-Izv., 23:2 (1984), 353–365	4
	1982
6.	V. A. Kofanov, “Approximation in the mean of classes of differentiable functions by algebraic polynomials”, Dokl. Akad. Nauk SSSR, 262:6 (1982), 1304–1306
	1980
7.	V. A. Kofanov, “Best uniform approximation of differentiable functions by algebraic polynomials”, Mat. Zametki, 27:3 (1980), 381–390 ; Math. Notes, 27:3 (1980), 190–195	1

Organisations