Search Results for: 11A25

Bi-unitary multiperfect numbers, V

Pentti Haukkanen and Varanasi Sitaramaiah Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 2, Pages 20–40 DOI: 10.7546/nntdm.2021.27.2.20-40 Full paper (PDF, 261 Kb) Details Authors and affiliations Pentti Haukkanen Faculty of … Continue reading →

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The abundancy index of divisors of odd perfect numbers – Part II

Keneth Adrian Precillas Dagal and Jose Arnaldo Bebita Dris Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 2, Pages 12–19 DOI: 10.7546/nntdm.2021.27.2.12-19 Full paper (PDF, 203 Kb) Details Authors and affiliations … Continue reading →

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A note on prime zeta function and Riemann zeta function. Corrigendum

Mladen Vassilev-Missana Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 2, Pages 51–53 DOI: 10.7546/nntdm.2021.27.2.51-53 Full paper (PDF, 141 Kb) Details Authors and affiliations Mladen Vassilev-Missana V. Hugo 5 Str, 1124, … Continue reading →

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On two theorems of Vassilev-Missana

Richard P. Brent Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 2, Pages 49–50 DOI: 10.7546/nntdm.2021.27.2.49-50 Full paper (PDF, 134 Kb) Details Authors and affiliations Richard P. Brent Mathematical Sciences Institute, … Continue reading →

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Inequalities for generalized divisor functions

József Sándor Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 2, Pages 41–48 DOI: 10.7546/nntdm.2021.27.2.41-48 Full paper (PDF, 218 Kb) Details Authors and affiliations József Sándor Department of Mathematics, Babes-Bolyai University … Continue reading →

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A study on some generalized multiplicative and generalized additive arithmetic functions

D. Bhattacharjee Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 1, Pages 32–44 DOI: 10.7546/nntdm.2021.27.1.32-44 Full paper (PDF, 600 Kb) Details Authors and affiliations D. Bhattacharjee Department of Mathematics, North-Eastern Hill … Continue reading →

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Bi-unitary multiperfect numbers, IV(b)

Pentti Haukkanen and Varanasi Sitaramaiah Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 1, Pages 45–69 DOI: 10.7546/nntdm.2021.27.1.45-69 Full paper (PDF, 297 Kb) Details Authors and affiliations Pentti Haukkanen Faculty of … Continue reading →

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On new arithmetic function relative to a fixed positive integer. Part 1

Brahim Mittou and Abdallah Derbal Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 27, 2021, Number 1, Pages 22–26 DOI: 10.7546/nntdm.2021.27.1.22-26 Full paper (PDF, 154 Kb) Details Authors and affiliations Brahim Mittou Department of … Continue reading →

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Objects generated by an arbitrary natural number

Krassimir Atanassov Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367-8275 Volume 26, 2020, Number 4, Pages 57–62 DOI: 10.7546/nntdm.2020.26.4.57-62 Full paper (PDF, 156 Kb) Details Authors and affiliations Krassimir Atanassov 1 Department of Bioinformatics and … 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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