Search Results for: 11A25

Short note on a new arithmetic function

Krassimir T. Atanassov Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 24, 2018, Number 1, Pages 94—96 DOI: 10.7546/nntdm.2018.24.1.94-96 Download full paper: PDF, 136 Kb Details Authors and affiliations Krassimir T. Atanassov Department of … Continue reading

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On Dris conjecture about odd perfect numbers

Paolo Starni Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 24, 2018, Number 1, Pages 5—9 DOI: 10.7546/nntdm.2018.24.1.5-9 Download full paper: PDF, 141 Kb Details Authors and affiliations Paolo Starni School of Economics, Management, … Continue reading

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Some formulae which match with the prime counting function infinitely often

Yannick Saouter Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 24, 2018, Number 1, Pages 1—4 DOI: 10.7546/nntdm.2018.24.1.1-4 Download full paper: PDF, 157 Kb Details Authors and affiliations Yannick Saouter Lab-STICC Institut Mines Telecom … Continue reading

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Short remark on a special numerical sequence

Krassimir T. Atanassov Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 23, 2017, Number 4, Pages 14—17 Download full paper: PDF, 148 Kb Details Authors and affiliations Krassimir T. Atanassov Department of Bioinformatics and … Continue reading

On a curious biconditional involving the divisors of odd perfect numbers

Jose Arnaldo B. Dris Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 23, 2017, Number 4, Pages 1—13 Download full paper: PDF, 177 Kb Details Authors and affiliations Jose Arnaldo B. Dris University of … Continue reading

On quasiperfect numbers

V. Siva Rama Prasad and C. Sunitha Notes on Number Theory and Discrete Mathematics, ISSN 1310-5132 Volume 23, 2017, Number 3, Pages 73—78 Download full paper: PDF, 158 Kb Details Authors and affiliations V. Siva Rama Prasad Nalla Malla Reddy … Continue reading

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

Jose Arnaldo B. Dris Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 23, 2017, Number 3, Pages 53—59 Download full paper: PDF, 139 Kb Details Authors and affiliations Jose Arnaldo B. Dris Department of … Continue reading

On two arithmetic functions

József Sándor and Krassimir T. Atanassov Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 23, 2017, Number 2, Pages 48—53 Download full paper: PDF, 162 Kb Details Authors and affiliations József Sándor Babes-Bolyai University, … Continue reading

Conditions equivalent to the Descartes–Frenicle–Sorli Conjecture on odd perfect numbers

Jose Arnaldo B. Dris Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 23, 2017, Number 2, Pages 12—20 Download full paper: PDF, 156 Kb Details Authors and affiliations Jose Arnaldo B. Dris Department of … Continue reading

Inequalities for φ and ψ functions (III)

Krassimir T. Atanassov Notes on Number Theory and Discrete Mathematics Print ISSN 1310–5132, Online ISSN 2367–8275 Volume 23, 2017, Number 1, Pages 19—23 Download full paper: PDF, 148 Kb Details Authors and affiliations Krassimir T. Atanassov Department of Bioinformatics and … Continue reading