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On certain arithmetical products involving the divisors of an integer [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
We study the arithmetical products Π d^d, Πd^{1/d} and Πd^{log d}, where d runs through the divisors of an integer n>1.
József Sándor
doaj   +1 more source

Inequalities between some arithmetic functions, II [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
As a continuation of Part I (see [1]), we offer new inequalities for classical arithmetic functions such as the Euler's totient function, the Dedekind's psi function, the sum of the positive divisors function, the number of divisors function, extended ...
Krassimir Atanassov   +2 more
doaj   +1 more source

On certain inequalities for φ, ψ, σ and related functions, III [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
We obtain generalizations of certain results from [2] and [4]. The unitary variants are also considered. Some new arithmetic functions and their inequalities are also considered.
József Sándor, Karol Gryszka
doaj   +1 more source

Objects generated by an arbitrary natural number. Part 3: Standard modal-topological aspect [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics, 2023
The set Set(n), generated by an arbitrary natural number n, was defined in [3]. There, and in [4], some arithmetic functions and arithmetic operators of a modal type are defined over the elements of Set(n).
Krassimir Atanassov
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Two arithmetic functions related to Euler's and Dedekind's functions [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
Two new arithmetic functions are introduced. In some sense, they are modifications of Euler's and Dedekind's functions. Some properties of the new functions are studied.
Krassimir Atanassov
doaj   +1 more source

Graphical shell for constructing user-entered arithmetic functions

open access: yesAdaptivni Sistemi Avtomatičnogo Upravlinnâ, 2023
The article has a relevant topic in the scientific and practical aspect development of a graphical shell of a software application for constructing functions of two variables entered by the user.
V. Smolij, N. Smolij, О. Lisovychenko
doaj   +1 more source

A Functional Equation in Arithmetic [PDF]

open access: yesTransactions of the American Mathematical Society, 1936
which occurs in all theories of numerical functions hitherto considered. The two most highly developed theories of this kind are those in which multiplication in the ring of all numerical functions is abstractly identical with C (Cauchy) or D (Dirichlet) multiplication of infinite series.t Lehmer's five postulates are sufficient for the development of ...
openaire   +2 more sources

On a certain class of arithmetic functions [PDF]

open access: yesMathematica Bohemica, 2017
A homothetic arithmetic function of ratio $K$ is a function $f \mathbb{N}\rightarrow R$ such that $f(Kn)=f(n)$ for every $n\in\mathbb{N}$. Periodic arithmetic funtions are always homothetic, while the converse is not true in general.
Antonio M. Oller-Marcén
doaj   +1 more source

A Universal Approximation Method and Optimized Hardware Architectures for Arithmetic Functions Based on Stochastic Computing

open access: yesIEEE Access, 2020
Stochastic computing (SC) has been applied on the implementations of complex arithmetic functions. Complicated polynomial-based approximations lead to large hardware complexity of previous SC circuits for arithmetic functions.
Zidi Qin   +6 more
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Divisibility of arithmetic functions [PDF]

open access: yesPacific Journal of Mathematics, 1984
A derivative-like operator on the Dirichlet ring of arithmetic functions is used to develop formulas for the greatest common divisor of certain arithmetic functions. It is conjectured that formulas of this type hold more generally.
openaire   +2 more sources

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