• DML-CZ Home

41A36 Approximation by positive operators (24 articles)

• Taş, Emre: Abstract Korovkin type theorems on modular spaces by $\mathscr {A}$-summability. (English). Mathematica Bohemica, vol. 143 (2018), issue 4, pp. 419-430
• Mursaleen, Mohammad; Alabied, Ahmed A. H.: Approximation properties for modified $(p,q)$-Bernstein-Durrmeyer operators. (English). Mathematica Bohemica, vol. 143 (2018), issue 2, pp. 173-188
• Ren, Mei-Ying; Zeng, Xiao-Ming: King type modification of $q$-Bernstein-Schurer operators. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 3, pp. 805-817
• Finta, Zoltán: Approximation by $q$-Bernstein type operators. (English). Czechoslovak Mathematical Journal, vol. 61 (2011), issue 2, pp. 329-336
• Gonska, Heiner; Păltănea, Radu: Simultaneous approximation by a class of Bernstein-Durrmeyer operators preserving linear functions. (English). Czechoslovak Mathematical Journal, vol. 60 (2010), issue 3, pp. 783-799
• Walczak, Zbigniew: On a class of Szász-Mirakyan type operators. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 3, pp. 705-716
• Rempulska, Lucyna; Tomczak, Karolina: On approximation of functions by certain operators preserving $x^2$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 49 (2008), issue 4, pp. 579-593
• Attalienti, Antonio; Rasa, Ioan: Shape-preserving properties and asymptotic behaviour of the semigroup generated by the Black-Scholes operator. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 2, pp. 457-467
• Duman, O.: A Korovkin type approximation theorems via $\scr I$-convergence. (English). Czechoslovak Mathematical Journal, vol. 57 (2007), issue 1, pp. 367-375
• Gupta, Vijay; Zeng, X. M.: Rate of approximation for the Bézier variant of Balazs-Kantorovich operators. (English). Mathematica Slovaca, vol. 57 (2007), issue 4, pp. [349]-358
• Rempulska, Lucyna; Skorupka, Mariola: On modified Meyer-König and Zeller operators of functions of two variables. (English). Archivum Mathematicum, vol. 42 (2006), issue 3, pp. 273-284
• Guo, Shunsheng; Qi, Qiulan: Simultaneous approximation for Szász-Mirakian quasi-interpolants. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 3, pp. 789-803
• Walczak, Zbigniew: Error estimates and the Voronovskaja theorem for modified Szász-Mirakyan operators. (English). Mathematica Slovaca, vol. 55 (2005), issue 4, pp. 465-476
• Gonska, Heiner; Piţul, Paula: Remarks on an article of J.P. King. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 46 (2005), issue 4, pp. 645-652
• Walczak, Zbigniew: Approximation properties of certain linear positive operators in exponential weighted spaces. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 42 (2003), issue 1, pp. 123-130
• Walczak, Zbigniew: Approximation properties of certain linear positive operators in exponential weighted spaces of functions of two variables. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 42 (2003), issue 1, pp. 131-138
• Agratini, Octavian; Rus, Ioan A.: Iterates of a class of discrete linear operators via contraction principle. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 44 (2003), issue 3, pp. 555-563
• Gadjiev, A. D.; Efendiyev, R. O.; Ibikli, E.: On Korovkin type theorem in the space of locally integrable functions. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 1, pp. 45-53
• Attalienti, Antonio; Campiti, Michele: Bernstein-type operators on the half line. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 4, pp. 851-860
• Agratini, Octavian: Properties of a new class of recursively defined Baskakov-type operators. (English). Archivum Mathematicum, vol. 34 (1998), issue 3, pp. 353-359
• Beckhoff, Ferdinand: Korovkin theory in Banach $^*$-algebras. (English). Mathematica Slovaca, vol. 43 (1993), issue 5, pp. 631-642
• Brabec, Jiří: A note on one of the Bernstein theorems. (English). Mathematica Bohemica, vol. 118 (1993), issue 3, pp. 321-324
• Nosálová, A.: Abstract analysis of Korovkin approximation theory [Abstract of thesis]. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 30 (1989), issue 1, pp. 194-195
• Limaye, Balmohan Vishnu; Namboodiri, M. N. N.: Weak approximation by positive maps on $C\sp \ast$-algebras. (English). Mathematica Slovaca, vol. 36 (1986), issue 1, pp. 91-99