Francesco Dell'Accio, Domenico Mezzanotte, Federico Nudo, Donatella Occorsio, “New results on the constrained mock-Chebyshev least squares operator”, Journal of Computational and Applied Mathematics, 2025, 116859
Bing Jiang, “Rate of approximaton by some neural network operators”, MATH, 9:11 (2024), 31679
Umberto Amato, Biancamaria Della Vecchia, “Rational Approximation on Exponential Meshes”, Symmetry, 12:12 (2020), 1999
R. Srivastava, Yamini Singh, “A (0;0,2) Interpolation Method to Approximate Functions via Ultraspherical Polynomials”, JIMS, 2020
I. I. Sharapudinov, “Sobolev-orthogonal systems of functions and some of their applications”, Russian Math. Surveys, 74:4 (2019), 659–733
I. I. Sharapudinov, M. G. Magomed-Kasumov, “On Vallée-Poissin means for special series with respect to ultraspherical Jacobi polynomials with sticking partial sums”, Russian Math. (Iz. VUZ), 62:9 (2018), 60–71
I. I. Sharapudinov, “Sobolev orthogonal polynomials generated by Jacobi and Legendre polynomials, and special series with the sticking property for their partial sums”, Sb. Math., 209:9 (2018), 1390–1417
I. I. Sharapudinov, “Approximation Properties of Fourier Series of Sobolev Orthogonal Polynomials with Jacobi Weight and Discrete Masses”, Math. Notes, 101:4 (2017), 718–734
Umberto Amato, Biancamaria Della Vecchia, “Rational Operators Based on q-Integers”, Results Math, 72:3 (2017), 1109
I. I. Sharapudinov, “Smeshannye ryady po klassicheskim ortogonalnym polinomam”, Dagestanskie elektronnye matematicheskie izvestiya, 2015, no. 3, 1–254
I. I. Sharapudinov, T. I. Sharapudinov, “Ob odnovremennom priblizhenii funktsii i ikh proizvodnykh posredstvom polinomov Chebysheva, ortogonalnykh na ravnomernoi setke”, Dagestanskie elektronnye matematicheskie izvestiya, 2015, no. 4, 74–117
Neha Mathur, Pankaj Mathur, Springer Proceedings in Mathematics & Statistics, 143, Mathematical Analysis and its Applications, 2015, 197
A. K. Ramazanov, “A Remark about Polynomial Approximations Involving the Interpolation of Continuous Functions”, Math. Notes, 90:2 (2011), 299–300
I. I. Sharapudinov, T. I. Sharapudinov, “Mixed Series of Jacobi and Chebyshev Polynomials and Their Discretization”, Math. Notes, 88:1 (2010), 112–139
I. I. Sharapudinov, “Approximating smooth functions using algebraic-trigonometric polynomials”, Sb. Math., 201:11 (2010), 1689–1713
A. V. Mironenko, “On the Jackson–Stechkin inequality for algebraic polynomials”, Proc. Steklov Inst. Math., 273, suppl. 1 (2011), S116–S123
I. I. Sharapudinov, “Approximation Properties of the Vallée-Poussin Means of Partial Sums of a Mixed Series of Legendre Polynomials”, Math. Notes, 84:3 (2008), 417–434
I. I. Sharapudinov, “Approximation properties of mixed series in terms of Legendre polynomials on the classes $W^r$”, Sb. Math., 197:3 (2006), 433–452
R. M. Trigub, “Approximation of functions by polynomials with Hermitian interpolation and restrictions on the coefficients”, Izv. Math., 67:1 (2003), 183–206
R. M. Trigub, “Approximation of Smooth Functions and Constants by Polynomials with Integer and Natural Coefficients”, Math. Notes, 70:1 (2001), 110–122