Search Results for: 11N

The congruence speed formula

Marco Ripà Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 4, Pages 43–61 DOI: 10.7546/nntdm.2021.27.4.43-61 Full paper (PDF, 227 Kb) Details Authors and affiliations Marco Ripà sPIqr Society, World Intelligence Network … Continue reading →

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On Robin’s criterion for the Riemann Hypothesis

Safia Aoudjit, Djamel Berkane and Pierre Dusart Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 4, Pages 15–24 DOI: 10.7546/nntdm.2021.27.4.15-24 Full paper (PDF, 268 Kb) Details Authors and affiliations Safia Aoudjit … Continue reading →

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On Vandiver’s arithmetical function – I

József Sándor Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 3, Pages 29–38 DOI: 10.7546/nntdm.2021.27.3.29-38 Full paper (PDF, 218 Kb) Details Authors and affiliations József Sándor Department of Mathematics, Babeş-Bolyai University … Continue reading →

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Numerical analysis approach to twin primes conjecture

Gabriele Di Pietro Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 3, Pages 175–183 DOI: 10.7546/nntdm.2021.27.3.175-183 Full paper (PDF, 194 Kb) Details Authors and affiliations Gabriele Di Pietro Via Annunziata, 42, … Continue reading →

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Arithmetical functions commutable with sums of squares

I. Kátai and B. M. Phong Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 3, Pages 143–154 DOI: 10.7546/nntdm.2021.27.3.143-154 Full paper (PDF, 177 Kb) Details Authors and affiliations I. Kátai Department … Continue reading →

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On the average order of the gcd-sum function over arbitrary sets of integers

V. Siva Rama Prasad and P. Anantha Reddy Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 3, Pages 16-28 DOI: 10.7546/nntdm.2021.27.3.16-28 Full paper (PDF, 244 Kb) Details Authors and affiliations V. … Continue reading →

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Odd/even cube-full numbers

Tippawan Puttasontiphot and Teerapat Srichan Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 1, Pages 27–31 DOI: 10.7546/nntdm.2021.27.1.27-31 Full paper (PDF, 148 Kb) Details Authors and affiliations Tippawan Puttasontiphot Department of … Continue reading →

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On a sum involving the number of distinct prime factors function related to the integer part function

Mihoub Bouderbala and Meselem Karras Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367-8275 Volume 26, 2020, Number 4, Pages 52–56 DOI: 10.7546/nntdm.2020.26.4.52-56 Full paper (PDF, 156 Kb) Details Authors and affiliations Mihoub Bouderbala Institute of … Continue reading →

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Intervals containing prime numbers

L. Panaitopol Notes on Number Theory and Discrete Mathematics, ISSN 1310–5132 Volume 7, 2001, Number 4, Pages 111–114 Full paper (PDF, 122 Kb) Details Authors and affiliations L. Panaitopol University of Bucharest, Faculty of Mathematics 14 Academiei St., RO-70109 Bucharest, … Continue reading →

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On some properties of the π(x) − π*(x) function

L. Panaitopol Notes on Number Theory and Discrete Mathematics, ISSN 1310–5132 Volume 6, 2000, Number 1, Pages 23–27 Full paper (PDF, 178 Kb) Details Authors and affiliations L. Panaitopol Faculty of Mathematics University of Bucharest 14 Academiei st. Ro-70109 Bucharest … Continue reading →

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