Inequalities related to φ, ψ and σ-functions (III)

Krassimir T. Atanassov
Notes on Number Theory and Discrete Mathematics, ISSN 1310–5132
Volume 14, 2008, Number 1, Pages 16–24
Full paper (PDF, 2951 Kb)

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Krassimir T. Atanassov
CLBME – Bulg. Acad. of Sci.
P.O. Box 12, Sofia-1113, Bulgaria

References

1. Atanassov K., Inequalities for φ, ψ and σ-functions, Octogon, Vol. 3, No. 2, Oct. 1995, 11-13.
2. Atanassov K., Inequalities for φ, ψ and σ-functions (II), Octogon, Vol. 4, No. 2, Oct. 1996, 18-20.
3. Mitrinovic, D., J. Sándor. Handbook of Number Theory, Kluwer Academic Publishers, 1996.
4. Nagell, T., Introduction to number theory, John Wiley & Sons, New York, 1950.