UNSOLVED PROBLEMS

In Number Theory, Logic, and Cryptography

Contributions and Proposed Solutions

This page provides a means for authors to have their papers made available for open inspection and feedback.  All contributions are as supplied by the author, and are not peer-reviewed.

Constructive feedback is encouraged, and should be sent direct to the relevant author, or posted to the companion discussion group, https://groups.io/g/UnsolvedProblems/topics,where questions can be asked and any of the problems or potential solutions discussed.

If you wish to have a contribution published here, please read the FAQ, and then contact me.

 

#161: A contribution to the Prime Gaps problem . Submitted by OOOVincentOOO , 18.00 GMT, Friday 10th June 2022.

Click here for full text.

#160: A contribution to the Collatz Conjecture. Submitted by Michael Williams , 21.00 GMT, Thursday 7th April 2022.

Click here for full text.

#159: A contribution to Legendre's Conjecture. Submitted by Wing K Yu , 23.00 GMT, Tuesday 29th March 2022.

Click here for full text.

#158: A contribution to the Twin Primes Conjecture. Submitted by Antoni Cuenca, 6.00 GMT, Sunday 6th March 2022.

Click here for full text.

#157: A contribution to the Perfect Cuboid Problem. Submitted by Natalia V. Aleshkevich, 18.00 GMT, Saturday 5th March 2022.

Click here for full text.

#156: A contribution to the N-Queens Problem. Submitted by Alessandro Boatto, 15.00 GMT, Tuesday 22nd February 2022.

Click here for full text.

#155: A contribution to the Riemann Hypothesis. Submitted by Tai Nakashima, 21.00 GMT, Saturday 8th January 2022.

Click here for full text.

#154: A contribution to the Collatz Conjecture. Submitted by Gaurav Krishna, 14.30 GMT Monday 18th October 2021.

Click here for full text.

#153: A contribution to the Odd Perfect Number problem. Submitted by Enrique Santos, 20.30 GMT, Friday 6th July 2018, revised 19:30 GMT, Thursday 12th July 2018, resubmitted 12.00 GMT Monday 18th October 2021.

Click here for full text.

#152: A contribution to the Collatz Conjecture. Submitted by Adarsha Chandra, 6.30 GMT, Friday 24th September 2021, revised version submitted 7.15 GMT, Saturday 9th October 2021

Click here for full text.

#151: A contribution to the Lonely Runner Conjecture. Submitted by Babacar Gueye, 22.00 GMT, Monday 6th September 2021.

Click here for full text (in French).

#150: A contribution to Brocard's Problem. Submitted by Babacar Gueye, 11.30 GMT, Wednesday 1st September 2021.

Click here for full text (in French).

#149: A contribution to the Goldbach Conjecture. Submitted by Kim Holleson, 00.30 GMT, Tuesday 31st August 2021.

Click here for full text.

#146: A contribution to the Beal Conjecture. Submitted by Stefano Maruelli, 9.00 GMT, Wednesday 25th November 2020.

Removed at the request of the author.

#145: A contribution to the Goldbach Conjecture. Submitted by Francesco Martingano, 15.00 GMT, Sunday 11th October 2020.

Click here for full text.

#144: A contribution to the Collatz Conjecture. Submitted by G駻ard Gombert, 7.30 GMT, Wednesday 4th August 2020.

Click here for full text.

#143: A contribution to Fermat's Last Theorem. Submitted by Stefano Maruelli, 22.00 GMT, Tuesday 28th July 2020.

Removed at the request of the author.

#142: A contribution to the Prime number distribution. Submitted by OOOVincentOOO, 19.30 GMT, Sunday 26th July 2020.

Click here for full text.

#140: A contribution to the Odd Perfect Number problem. Submitted by Enrique Santos, 18.30 GMT, Tuesday 7th July 2020.

Click here for full text.

#139: A contribution to the Perfect Cuboid problem. Submitted by Somnath Maiti, 22.30 GMT, Monday 22nd June 2020.

Click here for full text.

#138: A contribution to the Discrete Logarithm problem and the RSA challenge. Submitted by Fabrice Boudot, 06.30 GMT, Friday 12th June 2020.

Click here for full text.

#137: A contribution to the Riemann Hypothesis. Submitted by Devin Hardy, 02.00 GMT, Tuesday 9th June 2020.

Click here for full text.

#136: A contribution to the Beal Conjecture. Submitted by Don Blazys, 22.30 GMT, Tuesday 15th December 2009.

Click here for full text and here for a more abbreviated version.

#135: A contribution to the Collatz Conjecture. Submitted by Alf Clark, 18.30 GMT, Wednesday 20th May 2020.

Click here and here for full text.

#134: A contribution to the Riemann Hypothesis. Submitted by J P Morvan, 15.45 GMT, Friday 7th February 2020.

Click here for full text.

#133: A contribution to the Riemann Hypothesis. Submitted by Pal Doroszlai, 19.45 GMT, Friday 31st January 2020.

Click here for full text.

#132: A contribution to the Divisor Summatory Function. Submitted by OOOVincentOOO, 21.15 GMT, Tuesday 28th January 2020.

Click here for full text.

#131: A contribution to the Riemann Hypothesis. Submitted by Pal Doroszlai, 12.00 GMT, Tuesday 24th December 2019.

Click here for full text.

#130: A contribution to the Perfect Cuboid Problem.

Removed at the request of the author.

#129: A contribution to the mathematical laws that regulate prime numbers. Submitted by Filippo Giordano, 21.00 GMT, Tuesday 26th November 2019.

Click here for full text.

#128: A contribution to the Collatz Conjecture. Submitted by Sean Hannifin, 20.30 GMT, Saturday 23rd November 2019.

Click here for full text.

#126: The solution to the Dorabella Cipher. Submitted by Tim Roberts, 22.45 GMT, Thursday 1st August 2019.

This is a slightly amended version of a paper previously publsihed in 2014. Click here for full text.

#125: A contribution to the Fermat's Last Theorem. Submitted by Dawit Geinamo, 21.00 GMT, Friday 24th May 2019.

Click here for full text.

#124: A contribution to the Discrete Logarithm Problem. Submitted by Daniel Flatow, 23.30 GMT, Friday 8th March 2019.

Click here for full text.

#123: A contribution to a conjecture re Divisor Summatory Problems. Submitted by OOOVincentOOO, 21.15 GMT, Tuesday 5th March 2019.

Click here for full text.

#122: A contribution to a conjecture re Prime Number Series. Submitted by Alessandro Boatto, 8.00 GMT, Wednesday 27th February 2019.

Click here for full text.

#121: A contribution to the Dorabella Cipher. Submitted by Alessandro Boatto, 8.00 GMT, Wednesday 27th February 2019.

Click here for full text.

#120: A contribution to the Riemann Hypothesis. Submitted by Tomas Perna, 12.15 GMT, Tuesday 26th February 2019.

Click here for full text.

#119: A contribution to the ABC Conjecture. Submitted by Nicholas Wright, 02.30 GMT, Monday 25th February 2019.

Click here for full text.

#118: A contribution to the Collatz Conjecture. Submitted by Gerard Gombert, 18.00 GMT, Friday 22nd February 2019.

Click here (for page 1) and here (for page 2).

#117: A contribution to Goldbach's Conjecture. Submitted by Nurlan Gasimli, 17.15 GMT, Wednesday 23rd January 2019.

Click here for full text.

An archive of some older articles canbe found here.

 

覧覧覧覧覧-

This web site developed and maintained by

Tim S Roberts

Email: timro21@gmail.com