On variation-diminishing Schoenberg operators: new quantitative statements L Beutel, H Gonska, D Kacsó, G Tachev
Multivariate Approximation and Interpoltaion with Applications (ed. by M …, 2002
48 2002 Commutativity, direct and strong converse results for Phillips operators M Heilmann, G Tachev
East J. Approx 17 (3), 299-317, 2011
34 2011 GENERAL ESTIMATEs FoR. THE DITZIAN–TOTIK I Gavrea, H GoNsKA, R PĂLTĂNEA
EAST JOURNAL, ON APPROXIMATIONS 9 (2), 175-194, 2003
33 2003 Voronovskaja's theorem revisited GT Tachev
Journal of Mathematical Analysis and Applications 343 (1), 399-404, 2008
30 2008 Approximation by Szász-Mirakyan Baskakov operators V Gupta, G Tachev
J. Appl. Funct. Anal 9 (3-4), 308-319, 2014
28 2014 Variation-diminishing splines revisited L Beutel, H Gonska, D Kacsó, G Tachev
Proc. Int. Sympos. on Numerical Analysis and Approximation Theory (Cluj …, 2002
19 2002 A quantitative variant of Voronovskaja’s theorem H Gonska, G Tachev
Results in Mathematics 53 (3), 287-294, 2009
18 2009 Linear combinations of genuine Szasz–Mirakjan–Durrmeyer operators M Heilmann, G Tachev
Advances in Applied Mathematics and Approximation Theory: Contributions from …, 2013
16 2013 The second Ditzian-Totik modulus revisited: refined estimates for positive linear operators HH Gonska, GT Tachev
Revue d'analyse numérique et de théorie de l'approximation 32 (1), 39-61, 2003
16 2003 On the second moments of variation-diminishing splines L Beutel, H Gonska, D Kacso, G Tachev
J. Concr. Appl. Math 2 (1), 91-117, 2004
15 2004 On the Iterates of Jackson Type Operator T Zapryanova, D Souroujon
Mediterranean Journal of Mathematics 13, 5053-5061, 2016
12 2016 Approximation by operators of Cao-Gonska type G s, n and G s, n*. Direct and converse theorem T Zapryanova
Mathematics and Education in Mathematics 33, 189-194, 2004
12 2004 Approximation of bounded continuous functions by linear combinations of Phillips operators G Tachev
Demonstratio Mathematica 47 (3), 662-671, 2014
10 2014 Piecewise linear interpolation with nonequidistant nodes GT Tachev
Numerical Functional Analysis and Optimization 21 (7-8), 945-953, 2000
10 2000 A Characterization of the K-Functional for the Algebraic Version of the Trigonometric Jackson Integrals G s, n and the K-Functionals for Cao–Gonska Operators and TD Zapryanova
Results in Mathematics 54 (3), 397-413, 2009
9 2009 On the constants in ω ϕ 2-inequalities H Gonska, G Tachev
Rend. Circ. Mat. Palermo (2) Suppl.(68), 467-477, 2002
9 2002 A converse theorem for the best algebraic approximation in Lp [− 1, 1],(0< p< 1) GT Tachev
Serdica 17, 161-166, 1991
9 1991 Simultaneous approximation by Bernstein operators in Hölder norms H Gonska, J Prestin, G Tachev, DX Zhou
Mathematische Nachrichten 286 (4), 349-359, 2013
8 2013 Generalized inverse theorem for schoenberg operator T Zapryanova, G Tachev
Journal of Modern Mathematics Frontier 1 (2), 11-16, 2012
8 2012 Voronovskaja’s theorem for Schoenberg operator G Tachev
Math. Ineq. Appl 15 (1), 49-59, 2012
8 2012