Multiplicative Structure of Values of the Euler Function

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Multiplicative Structure of Values of the Euler Function

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/10645

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Title: Multiplicative Structure of Values of the Euler Function
Author: Banks, William David, 1964-; Friedlander, J. B. (John B.); Pomerance, Carl; Shparlinski, Igor E.
Date: 0000
Abstract: We establish upper bounds for the number of smooth values of the Euler function. In particular, although the Euler function has a certain “smoothing” effect on its integer arguments, our results show that, in fact, most values produced by the Euler function are not smooth. We apply our results to study the distribution of “strong primes”, which are commonly encountered in cryptography. We also consider the problem of obtaining upper and lower bounds for the number of positive integers n ≤ x for which the value of the Euler function φ (n) is a perfect square and also for the number of n ≤ x such that φ (n) is squarefull. We give similar bounds for the Carmichael function λ (n).
URI: http://hdl.handle.net/10355/10645

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  • Mathematics publications (MU) [119]
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