Certain topological properties and duals of the domain of a triangle matrix in a sequence space

The matrix domain of the particular limitation methods Cesàro, Riesz, difference, summation and Euler were studied by several authors. In the present paper, certain topological properties and β- and γ -duals of the domain of a triangle matrix in a sequence space have been examined as an application of the characterization of the related matrix classes. © 2007 Elsevier Inc. All rights reserved