Applied Mathematics and Computation, vol.218, no.3, pp.1036-1040, 2011 (SCI-Expanded)
In this paper we define the spaces Vσ0θ(p) and Vσθ(p) by using lacunary sequence and invariant mean. Further we characterize certain matrices in Vσθ which will up a gap in the existing literature. © 2011 Elsevier Inc. All rights reserved.