Remarks on φ, σ, ψ and ρ functions

K. Atanassov
Notes on Number Theory and Discrete Mathematics, ISSN 1310–5132
Volume 7, 2001, Number 1, Pages 1–3
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Authors and affiliations

K. Atanassov
Centre for Biomedical Engineering – Bulgarian Academy of Sciences,
Acad. G. Bonchev Str., Bl. 105, Sofia-1113, Bulgaria

Abstract

φ and σ functions (see, e.g., [1]) are two of the most important arithmetic functions.
They have a lot of very interesting properties. Some of them will be discussed below.

References

  1. Chandrasekharan K. Introduction to Analytic Number Theory. Springer-Verlag, Berlin, 1968.
  2. Atanassov K., Short proof of a hypothesis of A. Mullin. Bull. of Number Theory and Related Topics, Vol. IX (1985), No. 2, 9-11.
  3. Atanassov K. New integer functions, related to φ and σ functions. Bull. of Number Theory and Related Topics, Vol. XI (1987), No. 1, 3-26.
  4. Aranassov K. Remarks on φ, σ and ψ functions. Mathematical Forum (in press, 2001).

Related papers

  1. Atanassov, K. T. (2016). An arithmetic function decreasing the natural numbers. Notes on Number Theory and Discrete Mathematics, 22(4), 16-19.

Cite this paper

Atanassov, K. (2001). Remarks on φ, σ, ψ and ρ functions. Notes on Number Theory and Discrete Mathematics, 7(1), 1-3.

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