Comparison of strong and statistical convergences in some families of summability methods

التفاصيل البيبلوغرافية
العنوان: Comparison of strong and statistical convergences in some families of summability methods
المؤلفون: Šeletski Anna, Tali Anne
سنة النشر: 2014
المجموعة: doiSerbia (National Library of Serbia / KoBSON)
مصطلحات موضوعية: summability method, strong summability method, generalized Nörlund methods, Cesàro methods, Euler-Knopp methods, convexity theorem, statistical convergence
الوصف: The paper deals with certain families {Aα}(α>α0) of summability methods. Strong and statistical convergences in Cesàro- and Euler-Knopp-type families {Aα} are investigated. Convergence of a sequence x = (xn) with respect to the different strong summability methods [Aα+1]t (with positive exponents t = (tn)) in a family {Aα} is compared, and characterized with the help of statistical convergence. A convexity theorem for comparison of three strong summability methods [Aγ+1]t, [Aδ+1]t and [Aβ+1]t (β > δ > γ > α0) in a Cesàro-type family {Aα} is proved. This theorem can be seen as a generalization of some convexity theorems known earlier. Interrelations between strong convergence and certain statistical convergence are also studied and described with the help of theorems proved here. All the results can be applied to the families of generalized Nörlund methods (N, pαn, qn).
نوع الوثيقة: other/unknown material
اللغة: unknown
Relation: http://dx.doi.org/10.2298/FIL1406225S
DOI: 10.2298/FIL1406225S
الاتاحة: https://doi.org/10.2298/FIL1406225S
رقم الانضمام: edsbas.1D24BE4D
قاعدة البيانات: BASE