Using the mathematical induction and Cauchy's mean-value theorem, for any , where n and m are natural numbers, k is a nonnegative integer. The lower bound is best w possible. This inequality generalizes the Alzer's inequality J. Math. Anal. Appl. 179 Ε½ . x 1993 , 396α402 . An open problem is prop
A general form of Alzer's inequality
β Scribed by Zengkun Xu; Dapeng Xu
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 434 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0898-1221
No coin nor oath required. For personal study only.
β¦ Synopsis
Let {u,,}?=~ be a strictly increasing positive sequence, and let m be a natural number and r a positive number. In this paper, we prove n-1 ll(n-1) an -< ( > il=', ai an+1 -( > fi@ l/n ' i=l for n 2 2, then < for 71 1 1.
An open problem proposed in [l], which concerns the sequence of natural numbers and might be a generalization of Alzer's inequality, is shown to be a special case of our second result. Relative results are also given.
π SIMILAR VOLUMES
In this paper we are concerned with the following conjecture. Conjecture: Let L be a collection of k positive integers and In particular, we show this conjecture is true when L consists of k consecutive positive integers. This generalizes a well-known inequality of Fisher's. Our proof simplifies an