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On Discrete Inequalities Involving Arithmetic, Geometric, and Harmonic Means

Alzer, Horst
1995
  • Controlled Vocabulary...

Abstract
Si dimostra: se A(n), G(n), e H(n) denotano la media aritmetica, geometrica ed armonica dei primi n interi positivi , allora si ha che per n $\geq$ 2: \[ \begin{array}{cc} \frac{H(n)}{H(n-1)}-\frac{H(n+1)}{H(n)}< & \frac{G(n)}{G(n-1)}-\frac{G(n+1)}{G(n)}\\ \qquad\qquad\qquad\qquad< & \frac{A(n)}{A(n-1)}-\frac{A(n+1)}{A(n)} \end{array} \] We prove: if A(n), G(n), and H(n) denote the arithmetic, geometric, and harmonic means of the first n positive integers, then we have for n $\geq$ 2: \[ \begin{array}{cc} \frac{H(n)}{H(n-1)}-\frac{H(n+1)}{H(n)}< & \frac{G(n)}{G(n-1)}-\frac{G(n+1)}{G(n)}\\ \qquad\qquad\qquad\qquad< & \frac{A(n)}{A(n-1)}-\frac{A(n+1)}{A(n)} \end{array} \]
Archivio
http://hdl.handle.net/10077/4606
Diritti
open access
Visualizzazioni
2
Data di acquisizione
Apr 19, 2024
Vedi dettagli
google-scholar
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