Igor A. Shevchuk

According to our database, Igor A. Shevchuk authored at least 9 papers between 2002 and 2021.

Collaborative distances:

• Dijkstra number of six.
• Erdős number of five.

2021

Exact order of pointwise estimates for polynomial approximation with Hermite interpolation.

Kirill A. Kopotun, Dany Leviatan, Igor A. Shevchuk

J. Approx. Theory, 2021

2019

On weighted approximation with Jacobi weights.

Kirill A. Kopotun, Dany Leviatan, Igor A. Shevchuk

J. Approx. Theory, 2019

2016

Comparing the degrees of unconstrained and shape preserving approximation by polynomials.

Dany Leviatan, Igor A. Shevchuk

J. Approx. Theory, 2016

Yet another look at positive linear operators, q-monotonicity and applications.

Kirill A. Kopotun, Dany Leviatan, Andriy Prymak, Igor A. Shevchuk

J. Approx. Theory, 2016

2014

Positive results and counterexamples in comonotone approximation II.

Dany Leviatan, Igor A. Shevchuk, O. V. Vlasiuk

J. Approx. Theory, 2014

2005

Uniform estimates for polynomial approximation in domains with corners.

F. G. Abdullayev, Igor A. Shevchuk

J. Approx. Theory, 2005

2003

Coconvex polynomial approximation.

Dany Leviatan, Igor A. Shevchuk

J. Approx. Theory, 2003

2002

Coconvex Approximation.

Dany Leviatan, Igor A. Shevchuk

J. Approx. Theory, 2002

Boundedness by 3 of the Whitney Interpolation Constant.

Jacek Gilewicz, Yuri V. Kryakin, Igor A. Shevchuk

J. Approx. Theory, 2002