Lower bounds for summability matrices on weighted sequence spaces.
Norms of certain operators on weighted spaces and Lorentz sequence spaces.
Lower bounds for matrices on block weighted sequence spaces. I
In this paper we consider some matrix operators on block weighted sequence spaces . The problem is to find the lower bound of some matrix operators such as Hausdorff and Hilbert matrices on . This study is an extension of papers by G. Bennett, G.J.O. Jameson and R. Lashkaripour.
Some inequalities involving upper bounds for some matrix operators. I
In this paper we consider the problem of finding upper bounds of certain matrix operators such as Hausdorff, Nörlund matrix, weighted mean and summability on sequence spaces and Lorentz sequence spaces , which was recently considered in [9] and [10] and similarly to [14] by Josip Pecaric, Ivan Peric and Rajko Roki. Also, this study is an extension of some works by G. Bennett on spaces, see [1] and [2].
Norm and lower bounds of operators on weighted sequence spaces
On the fine spectrum of generalized upper double-band matrices over the sequence space
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