Follow
Igor Shevchuk
Igor Shevchuk
Verified email at univ.kiev.ua
Title
Cited by
Cited by
Year
Theory of uniform approximation of functions by polynomials
VK Dzyadyk, IA Shevchuk
Walter de Gruyter, 2008
1772008
Приближение многочленами и следы непрерывных на отрезке функций
ИА Шевчук
Наукова думка, 1992
130*1992
Uniform and pointwise shape preserving approximation by algebraic polynomials
KA Kopotun, D Leviatan, A Prymak, IA Shevchuk
arXiv preprint arXiv:1109.0968, 2011
482011
Piecewise monotone pointwise approximation
GA Dzyubenko, J Gilewicz, IA Shevchuk
Constructive approximation 14, 311-348, 1998
441998
Interpolatory pointwise estimates for polynomial approximation
HH Gonska, D Leviatan, IA Shevchuk, H -J. Wenz
Constructive approximation 16 (4), 603-629, 2000
372000
The degree of coconvex polynomial approximation
K Kopotun, D Leviatan, I Shevchuk
Proceedings of the American Mathematical Society 127 (2), 409-415, 1999
331999
Coconvex approximation
D Leviatan, IA Shevchuk
Journal of Approximation Theory 118 (1), 20-65, 2002
322002
Nearly comonotone approximation
D Leviatan, IA Shevchuk
Journal of approximation theory 95 (1), 53-81, 1998
311998
Some positive results and counterexamples in comonotone approximation, II
D Leviatan, IA Shevchuk
Journal of approximation theory 100 (1), 113-143, 1999
291999
Boundedness by 3 of the Whitney interpolation constant
J Gilewicz, YV Kryakin, IA Shevchuk
Journal of Approximation Theory 119 (2), 271-290, 2002
282002
Comonotone approximation
J Gilewicz, IA Shevchuk
Fundamentalnaya i prikladnaya matematika 2 (2), 319-363, 1996
271996
New moduli of smoothness: weighted DT moduli revisited and applied
KA Kopotun, D Leviatan, IA Shevchuk
Constructive Approximation 42, 129-159, 2015
242015
Convex polynomial approximation in the uniform norm: conclusion
KA Kopotun, D Leviatan, IA Shevchuk
Canadian Journal of Mathematics 57 (6), 1224-1248, 2005
242005
Approximation of monotone functions: a counter example
RA DeVore, D Leviatan, IA Shevchuk
Curves and Surfaces with Applications in CAGD, Proceedings of the Chamonix …, 1996
231996
On co-approximation of monotone functions
IA Shevchuk
Doklady Akademii Nauk 308 (3), 537-541, 1989
221989
Coconvex polynomial approximation
D Leviatan, IA Shevchuk
Journal of Approximation Theory 121 (1), 100-118, 2003
212003
Some positive results and counterexamples in comonotone approximation
D Leviatan, IA Shevchuk
journal of approximation theory 89 (2), 195-206, 1997
211997
Approximation of monotone functions by monotone polynomials
IA Shevchuk
Matematicheskii Sbornik 183 (5), 63-78, 1992
211992
On weighted approximation with Jacobi weights
KA Kopotun, D Leviatan, IA Shevchuk
Journal of Approximation Theory 237, 96-112, 2019
162019
New moduli of smoothness
KA Kopotun, D Leviatan, IA Shevchuk
arXiv preprint arXiv:1408.2018, 2014
162014
The system can't perform the operation now. Try again later.
Articles 1–20