ACTA issues

On strong approximation of orthogonal series

H. Schwinn

Acta Sci. Math. (Szeged) 60:3-4(1995), 609-618

Abstract. For general orthogonal series and nonnegative summability methods we consider the interrelation between the rate of convergence of strong means and of certain partial sums. Therefore Toeplitz-like conditions on the method are introduced and their strength is discussed.

AMS Subject Classification (1991): 42C15

Received January 4, 1995. (Registered under 5654/2009.)