Lipschitz-Nikolski $$\imath $$ constants and asymptotic simultaneous approximation on theM n -operatorsconstants and asymptotic simultaneous approximation on theM n -operators

Cheney, E. W. andSHARMA, A.,Bernstein power series. Canad. J. Math.16 (1964), 251–252.

Lupas, A. andMuller, M. W.,Approximation properties of the M n -operators. Aequationes Math.5 (1970), 19–37.

Meyer-Konig, W. andZeller, K.,Bernsteinsche Potenzreihen. Studia Math.19 (1960), 89–94.

Müller, M. W.,Uber die Ordnung der Approximation dutch die Folge der Operatoren yon Meyer-Kö⊁g and Zeller and dutch die Folge deren erster Ableitungen. Bull. Inst. Politehn. Iasi14 (1968), 83–90.

RATHORE, R. K. S.,Approximation of unbounded functions with linear positive operators. Doctoral Thesis, Technische Hogeschool Delft, 1974.

Rathore, R. K. S.,Lipschitz-Nikolskii constants of the gamma operators of Müller. Math. Z.141 (1975), 193–198.

Rathore, R. K. S.,On (L, p)-summability of a multiply differentiated Fourier series. Indag. Math.38 (1976), 217–230.

Sikkema, P. C.,On the asymptotic approximation with operators of Meyer-König and Zeller. Indag. Math.32 (1970), 428–440.

Watanabe, S. andSuzuki, Y.,Approximation of functions by generalized Meyer-König and Zeller operators. Bull. of Yamagata Univ. Natur. Sci.7(2) (1969), 123–127.