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Compact matrix operators between the spaces m(Ø), n(Ø) and l_p

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We give the characterizations of the classes of matrix transformations (m(Ø),l_p), (n(Ø),l_p) ([5, Theorem 2]), (l_p, m(Ø)) ([5, Theorem 1]) and (l_p,n(Ø)) for 1≤ p≤ ∞, establish estimates for the norms of the bounded linear operators defined by those matrix transformations, and characterize the corresponding subclasses of compact matrix operators.

Abstract

We give the characterizations of the classes of matrix transformations (m(Ø),l_p), (n(Ø),l_p) ([5, Theorem 2]), (l_p, m(Ø)) ([5, Theorem 1]) and (l_p,n(Ø)) for 1≤ p≤ ∞, establish estimates for the norms of the bounded linear operators defined by those matrix transformations, and characterize the corresponding subclasses of compact matrix operators.

참고문헌 (8)

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  2. E. Malkowsky, "Matrix transformations between FK-spaces and the sequence spaces m(ϕ) and n(ϕ)", J. Math. Anal. Appl, 196(2), pp.659~665 (1995)
  3. E. Malkowsky, "An introduction into the theory of sequence spaces and measures of noncompactness", Zb. Rad. (Beogr.), 9(7), pp.143~234 (2000)
  4. A. Peyerimhoff, "Uber ein Lemma von Herrn Chow", J. London Math. Soc, 32, pp.33~36 (1957)
  5. W. L. C. Sargent, "Some sequence spaces related to the ℓp spaces", J. London Math. Soc, 35, pp.161~171 (1960)
  6. W. L. C. Sargent, "On sectionally bounded BK spaces", Math. Z, 83, pp.57~66 (1964)
  7. W. L. C. Sargent, "On compact matrix transformations between sectionally bounded BK-spaces", J. London Math. Soc, 41, pp.70~87 (1966)
  8. A. Wilansky, "Summability through Functional Analysis", Mathematics Studies, 85 (1984), North- Holland

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