Domain of difference matrix of order one in some spaces of double sequences

Serkan Demiriz, Osman Duyar

In this study, we define the spaces ${\mathcal{M}}_u(\Delta ),{\mathcal{C}}_p(\Delta ),{\mathcal{C}}_{0p}(\Delta ),{\mathcal{C}}_r(\Delta )$ and ${\mathcal{L}}_q(\Delta )$ of double sequences whose difference tr…