1. Let E denote a Banacb space över the fieîd of real or conıplex numbers. The spaces Co(E), c(E), t.p(E) and loo(E) of sequences in E have been discussed by Boas [1], Day [2], Leonard [9], Maddox [11] and some others. Lorentz [10] introduced the space c cf aîmost convergent sequen- ces of real or complex numbers. Subsequently almost cf nvergent scqu- ences have been discussed by Duran [5], Kiug [6], Nanda [14, 15] and some others. The space c (E) of almost convergent sequenees in E has been discussed by Kurtz [7, 8]. More recently some new sequence spaces. ■vvhich. are denoted by tp and î P> space 'ip of sequences of real or absolute analogue, just as
have been introduced in [3] and [4], The complex numbers emerged from c as iîs ip emerged from tîıe concept of convergence.
Primary Language | English |
---|---|
Subjects | Mathematical Sciences |
Journal Section | Research Articles |
Authors | |
Publication Date | January 1, 1985 |
Submission Date | January 1, 1985 |
Published in Issue | Year 1985 Volume: 34 |
Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics.
This work is licensed under a Creative Commons Attribution 4.0 International License.