On the Composition of Some Arithmetic Functions, II  
  Authors: Jozsef Sandor,  
  Keywords: Arithmetic functions, Makowski-Schinzel conjuncture, Sándor's conjuncture, Inequalities.  
  Date Received: 14/10/04  
  Date Accepted: 13/05/05  
  Subject Codes:

11A25, 11N37.

  Editors: László Tóth,  

We study certain properties and conjuctures on the composition of the arithmetic functions $ sigma$, $ varphi$, $ psi$, where $ sigma$ is the sum of divisors function, $ varphi$ is Euler's totient, and $ psi$ is Dedekind's function.;

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