Infinite matrices and sigma(A)-core

• Autorzy: Kayaduman K. , Furkan H.
• Języki publikacji: EN

Abstrakty

EN

In [8], the concepts of sigma-core of a bounded number sequence x have been introduced and also some inequalities which are analogues of Knopp's core theorem have been proved. In this paper, using the concept of Vsigma(A)-summabiIity introduced by Savas, we characterize the matrices of the class (Vmu, Vsigma(A))reg and determine necessary and sufficient conditions for a matrix B to satisfy qsigma(A) (Bx) C qmu(x) for all x is an element of m.

Słowa kluczowe

EN

matrix; infinite matrices; matrix transformations; core theorems

PL

macierz; macierze nieskończone; odwzorowanie macierzowe; teoria rdzenia

• Wydawca: De Gruyter
• Czasopismo: Demonstratio Mathematica
• Rocznik: 2006
• Tom: Vol. 39, nr 3
• Strony: 531--538
• Opis fizyczny: Bibliogr. 14 poz.

Twórcy

autor

Kayaduman K.

autor

Furkan H.

• Gaziantep Universitesi, Fen Edebiyat Fakultesi, Matematik Bolumu, 27310-Gaziantep, Turkey,

Bibliografia

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