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On the Equation x21 + x22 + x23 + x24 = N with Variables such that x1x2x3x4 + 1 is an Almost-Prime Cover

On the Equation x21 + x22 + x23 + x24 = N with Variables such that x1x2x3x4 + 1 is an Almost-Prime

Tatra Mountains Mathematical Publications
Volume 59 (2014): Issue 1 (June 2014)
By: T. L. Todorova and  D. I. Tolev  
Open Access
|Mar 2015

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DOI: https://doi.org/10.2478/tmmp-2014-0015 | Journal eISSN: 1338-9750 | Journal ISSN: 12103195
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Language: English
Page range: 1 - 26
Submitted on: Jun 22, 2014
Published on: Mar 11, 2015
Published by: Slovak Academy of Sciences, Mathematical Institute
In partnership with: Paradigm Publishing Services
Publication frequency: 3 issues per year
Keywords:
Lagrange’s equation,
almost-primes
Related subjects:
Mathematics,
General mathematics

© 2015 T. L. Todorova, D. I. Tolev, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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