数学物理学报(英文版) ›› 2013, Vol. 33 ›› Issue (3): 797-813.doi: 10.1016/S0252-9602(13)60039-9

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ON THE mth ORDER DIFFERENCE SEQUENCE SPACE OF GENERALIZED WEIGHTED MEAN AND COMPACT OPERATORS

Metin BAS¸ARIR|Emrah Evren KARA   

  1. Department of Mathematics, Sakarya University, 54187, Sakarya/Turkey; Department of Mathematics, Bilecik S¸eyh Edebali University, 11210, Bilecik,Turkey
  • 收稿日期:2012-01-17 修回日期:2012-08-09 出版日期:2013-05-20 发布日期:2013-05-20

ON THE mth ORDER DIFFERENCE SEQUENCE SPACE OF GENERALIZED WEIGHTED MEAN AND COMPACT OPERATORS

Metin BAS¸ARIR|Emrah Evren KARA   

  1. Department of Mathematics, Sakarya University, 54187, Sakarya/Turkey; Department of Mathematics, Bilecik S¸eyh Edebali University, 11210, Bilecik,Turkey
  • Received:2012-01-17 Revised:2012-08-09 Online:2013-05-20 Published:2013-05-20

摘要:

In this article, using generalized weighted mean and difference matrix of order m, we introduce the paranormed sequence space ?(u, v, p; Δ(m)), which consist of the sequences whose generalized weighted Δ(m)-difference means are in the linear space ?(p) defined by I.J.Maddox. Also, we determine the basis of this space and compute its α-, β- and γ-duals. Further, we give the characterization of the classes of matrix mappings from ?(u, v, p,Δ(m)) to ?∞, c, and c0. Finally, we apply the Hausdorff measure of noncompacness to characterize some classes of compact operators given by matrices on the space ?p(u, v, Δ(m)) (1≤p < 1).

关键词: Paranormed sequence spaces, difference sequence spaces, weighted mean, α-, β-, γ-duals, matrix mappings, Hausdorff measure of noncompactness, compact operators

Abstract:

In this article, using generalized weighted mean and difference matrix of order m, we introduce the paranormed sequence space ?(u, v, p; Δ(m)), which consist of the sequences whose generalized weighted Δ(m)-difference means are in the linear space ?(p) defined by I.J.Maddox. Also, we determine the basis of this space and compute its α-, β- and γ-duals. Further, we give the characterization of the classes of matrix mappings from ?(u, v, p,Δ(m)) to ?∞, c, and c0. Finally, we apply the Hausdorff measure of noncompacness to characterize some classes of compact operators given by matrices on the space ?p(u, v, Δ(m)) (1≤p < 1).

Key words: Paranormed sequence spaces, difference sequence spaces, weighted mean, α-, β-, γ-duals, matrix mappings, Hausdorff measure of noncompactness, compact operators

中图分类号: 

  • 46A45