English

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

Functional Analysis 2015-01-07 v1

Abstract

In this study, we define the spaces Mu(Δ),Cp(Δ),C0p(Δ),Cr(Δ)\mathcal{M}_{u}(\Delta),\mathcal{C}_{p}(\Delta),\mathcal{C}_{0p}(\Delta), \mathcal{C}_{r}(\Delta) and Lq(Δ)\mathcal{L}_{q}(\Delta) of double sequences whose difference transforms are bounded , convergent in the Pringsheim's sense, null in the Pringsheim's sense, both convergent in the Pringsheim's sense and bounded, regularly convergent and absolutely qq-summable, respectively, and also examine some inclusion relations related to those sequence spaces. Furthermore, we show that these sequence spaces are Banach spaces . We determine the alpha-dual of the space Mu(Δ)\mathcal{M}_{u}(\Delta) and the β(v)\beta(v)-dual of the space Cη(Δ)\mathcal{C}_{\eta}(\Delta) of double sequences, where v,η{p,bp,r}v,\eta\in \{p,bp,r\}. Finally, we characterize the classes (μ:Cv(Δ))(\mu:\mathcal{C}_{v}(\Delta)) for v{p,bp,r}v\in \{p,bp,r\} of four dimensional matrix transformations, where μ\mu is any given space of double sequences.

Keywords

Cite

@article{arxiv.1501.01113,
  title  = {Domain of difference matrix of order one in some spaces of double sequences},
  author = {Serkan Demiriz and Osman Duyar},
  journal= {arXiv preprint arXiv:1501.01113},
  year   = {2015}
}

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13 pages