ACTA issues

Multi-dimensional discrete summability

Ferenc Schipp, Ferenc Weisz

Acta Sci. Math. (Szeged) 75:1-2(2009), 219-231
6070/2009

Abstract. A discrete version of the $\theta $-summability is introduced for higher dimensions. It is proved that the discrete $\theta $-means of a continuous function converge uniformly to the function. Moreover, the multi-dimensional Jackson polynomials converge uniformly to the continuous function.


AMS Subject Classification (1991): 42B08, 46E30, 42A38

Keyword(s): Wiener amalgam spaces, Herz spaces, \theta, discrete-summability, Fejér summability, Jackson polynomials, Hermite interpolation


Received October 14, 2008, and in revised form January 6, 2009. (Registered under 6070/2009.)