ANZIAM  J.  45 (2003), 285-288

On some switching inequalities of Brenner and Alzer

C. E. M. Pearce   School of Applied Mathematics   The University of Adelaide   Adelaide SA 5005   Australia     cpearce@maths.adelaide.edu.au and J. Pecaric   Faculty of Textile Technology   University of Zagreb   Pierottijeva 6   1000 Zagreb   Croatia     pecaric@hazu.hr

Abstract

We consider some general switching inequalities of Brenner and Alzer. It is shown that Brenner's Theorem B below does not hold in general without further conditions. A simple proof is given of Alzer's Corollary D.

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