On Twisted Sums of Sequence Spaces

Journal Title: JOURNAL OF ADVANCES IN MATHEMATICS - Year 2018, Vol 15, Issue 0

Abstract

 We prove the existence of non trivial twisted sums involving the pth James space Jp(1 < p < 1), the Johnson-Lindenstrauss space JL; the James tree space JT , the Tsirelson’s space T and the Argyros and Deliyanni space AD . We also present non trivial twisted sums involving their duals and biduals. We show that there are strictly singular quasi-linear maps from the spaces T ;T* ; AD and JT into C[0; 1]. We discuss the Pelczynski’s property(u) for the twisted sums involving these spaces which extends a pthJames-Schreier spaces Vp(1 < p <1) or J2. 

Authors and Affiliations

Haifa Mohammed Bin Jebreen

Keywords

Related Articles

On Two Absolute Index-Summability Methods

In this paper we have established a relation between the Summability methods , and X-|_N,Pn |k , Y-|A|K, K >=1 and Y-|A, ,f(t)|k, K>=1, t>=0.

New high-order methods for solving non-linear equations

In this paper, we present two families of third and fourth order iterative methods for solving nonlinear equations. The efficiency index of the proposed schemes is 1.442 and 1.587. In order to compare the perfo...

On the Production of Nonseparable Solutions of Linear Partial Differential Equations

A particular means of producing nonseparable solutions to a linear partial differential equation from given separable solutions to the same partial differential equation is exposed and extended. The method, involving sym...

On the Calculation of Eigenvalues and Eigenvectors of Matrix Polynomials and Orthogonality Relations between their Eigenvectors

In the paper, the computation of the eigenvalues and eigenvectors of polynomial eigenvalue problem via standard eigenvalue problems is presented. We also establish orthogonality relations between the eigenvectors of matr...

Some new formulas on the K-Fibonacci numbers

In this paper, we find some formulas for finding some special sums of the k-Fibonacci or the k-Lucas numbers. We find also some formulas that relate the k-Fibonacci or the k--Lucas numbers to some sums of these numbers..

Download PDF file
  • EP ID EP651847
  • DOI 10.24297/jam.v15i0.7901
  • Views 199
  • Downloads 0

How To Cite

Haifa Mohammed Bin Jebreen (2018). On Twisted Sums of Sequence Spaces. JOURNAL OF ADVANCES IN MATHEMATICS, 15(0), 8133-8144. https://europub.co.uk/articles/-A-651847