@article{120460, author = {Zbigniew Walczak}, title = {Approximation properties of certain linear positive operators in exponential weighted spaces of functions of two variables}, journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica}, volume = {42}, year = {2003}, pages = {131-138}, zbl = {1054.41015}, mrnumber = {2056028}, language = {en}, url = {http://dml.mathdoc.fr/item/120460} }
Walczak, Zbigniew. Approximation properties of certain linear positive operators in exponential weighted spaces of functions of two variables. Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, Tome 42 (2003) pp. 131-138. http://gdmltest.u-ga.fr/item/120460/
Global approximation theorems for the Szasz-Mirakjan operators in exponential weight spaces, In: Linear Spaces and Approximation (Proc. Conf. Oberwolfach, 1977), Birkhäuser Verlag, Basel ISNM, 40 (1978), 319-333. (1977) | MR 0499919
Uniform approximation by Szasz-Mirakyan type operators, Acta Math. Hung. 41, 3-4 (1983), 291-307. (1983) | MR 0703742
Approximation properties of certain linear positive operators in exponential weighted spaces, Acta Univ. Palacki. Olomuc., Fac. rer. nat., Math. 42 (2003), 123-130. | MR 2056027 | Zbl 1054.41015