On certain inequalities for arithmetic function

J. Sándor
Notes on Number Theory and Discrete Mathematics
Print ISSN 1310–5132
Volume 1, 1995, Number 1, Pages 27–32
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J. Sándor
4160 Forteni Nr. 79, R-Jud. Harghita, Romania

References

1. E. Cohen, Arithmetical functions associated with the unitary divisors of an integer, Math. Z. 74 (1960), 66-80.
2. G. H. Hardy and Е. H. Wright, An introduction to the theory of numbers, Oxford, Clarendon Press, 1960.
3. E. Kratzel, Zahlentheorie, Berlin, Springer, 1981.
4. J. Morgado, On the arithmetical function s_k^*. Portug. Math., 23 (1964), 35-40.
5. J. Sándor, An application of the Jensen-Hadamard inequality. Nieuw Arch. Wiskunde 8(4) (1990), 63-66.
6. J. Sándor and L. Toth, On certain number-theoretic inequali­ties, The Fib. Quart. 28 (1990), 255-258.
7. J. Sándor, On an inequality of Klamkin with arithmetical ap­plications, Intern. J. Math. Ed. Sci. Technol. 25 (1994), 157-158.