$theta_sigma$-summable sequences and some matrix transformations
نویسندگان
چکیده
منابع مشابه
Banach Algebras of Matrix Transformations Between Spaces of Strongly Bounded and Summable Sequences
Let 1 ≤ p <∞. We characterise the classes (X,Y ) of all infinite matrices that mapX into Y forX = w ∞(Λ) orX = w p 0(Λ) and Y = w 1 ∞(Λ ′), forX = w ∞(Λ) and Y = w ∞(Λ ′), and for X =Mp(Λ) and Y =M1(Λ), the β-duals of w ∞(Λ) and w ∞(Λ ′). As special cases, we obtain the characterisations of the classes of all infinite matrices that map w ∞ into w 1 ∞, and w p into w. Furthermore, we prove that ...
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ژورنال
عنوان ژورنال: Tamkang Journal of Mathematics
سال: 2004
ISSN: 2073-9826,0049-2930
DOI: 10.5556/j.tkjm.35.2004.190