V. Kannan and R. Srikanth

Notes on Number Theory and Discrete Mathematics, ISSN 1310-5132

Volume 19, 2013, Number 1, Pages 19—21

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## Details

### Authors and affiliations

V. Kannan

*Department of Mathematics, Sastra University
Thanjavur-613 401, India*

R. Srikanth

*Department of Mathematics, Sastra University
Thanjavur-613 401, India*

### Abstract

In this paper, we improve the lower bound of the paper [3].

### Keywords

- Arithmetic functions
*φ*,*ψ*and*σ*

### AMS Classification

- 11A25

### References

- Atanassov, K. Note on
*φ*,*ψ*and*σ*-functions, Notes on Number Theory and Discrete Mathematics, Vol. 12, 2006, No. 4, 23–24. - Atanassov, K. Note on
*φ*,*ψ*and*σ-*functions. Part 2, Notes on Number Theory and Discrete Mathematics, Vol. 16, 2010, No. 3, 25–28. - Atanassov, K. Note on
*φ*,*ψ*and*σ-*functions. Part 3, Notes on Number Theory and Discrete Mathematics, Vol. 17, 2011, No. 3, 13–14. - Nagell, T. Introduction to Number Theory, John Wiley & Sons, New York, 1950.

## Related papers

## Cite this paper

APAKannan, V., & Srikanth, R. (2013). Note on *φ* and *ψ* functions. Notes on Number Theory and Discrete Mathematics, 19(1), 19-21.

Kannan, V, and R Seraj. “Note on *φ* and *ψ* Functions.” Notes on Number Theory and Discrete Mathematics 19, no. 1 (2013): 19-21.

Kannan, V, and R Seraj. “Note on *φ* and *ψ* Functions.” Notes on Number Theory and Discrete Mathematics 19.1 (2013): 19-21. Print.