Abstract
We prove that for every integer n, there exist infinitely many D(n)-triples which are also D(t)-triples for \(t\in {\mathbb {Z}}\) with \(n\ne t\). We also prove that there are infinitely many \(D(-1)\)-triples in \({\mathbb {Z}}[i]\) which are also D(n)-triple in \({\mathbb {Z}}[i]\) for two distinct n’s other than \(n = -1\) and these triples are not equivalent to any triple with the property D(1).
Similar content being viewed by others
Data availibility
There is no data availability statement in this manuscript.
References
Adžaga, N.: On the size of Diophantine m-tuples in imaginary quadratic number rings, Bull. Math. Sci. 9 (2019), no. 3, Article ID: 1950020, 10pp
Adžaga, N., Dujella, A., Kreso, D., Tadić, P.: Triples which are D(n)-sets for several n’s. J. Number Theory 184, 330–341 (2018)
Bonciocat, N.C., Cipu, M., Mignotte, M.: There is no Diophantine \(D(-1)\)-quadruple. J. Lond. Math. Soc. 105, 63–99 (2022)
Baker, A., Davenport, H.: The equations\(3x^2 - 2 = y^2\)and\(8x^2 - 7 = z^2\), Quart. J. Math. Oxford Ser. (2) 20 (1969), 129–137
Chakraborty, K., Gupta, S., Hoque, A.: On a Conjecture of Franušić and Jadrijević: Counter-Examples. Results Math. 78(1), 18 (2023)
Dujella, A.: Generalization of a problem of Diophantus. Acta Arith. 65, 15–27 (1993)
Dujella, A.: The problem of Diophantus and Davenport for Gaussian integers. Glas. Mat. Ser. III(32), 1–10 (1997)
Dujella, A.: There are only finitely many Diophantine quintuples. J. Reine Angew. Math. 566, 183–214 (2004)
Dujella, A., Fuchs, C.: Complete solution of a problem of Diophantus and Euler. J. Lond. Math. Soc. 71, 33–52 (2005)
Dujella, A., Kazalicki, M., Petričević, V. : \(D(n)\)-quintuples with square elements, Rev. R. Acad. Cienc. Exactas Fis. Nat. Ser. A Math. RACSAM 115 (2021), Article 172, 10pp
Dujella, A., Petričević, V.: Doubly regular Diophantine quadruples, Rev. R. Acad. Cienc. Exactas Fis. Nat. Ser. A Math. RACSAM 114 (2020), Article 189, 8pp
Dujella, A., Petričević, V.: Diophantine quadruples with the properties\(D(n_1)\)and\(D(n_2)\), Rev. R. Acad. Cienc. Exactas Fis. Nat. Ser. A Math. RACSAM 114 (2020), Article 21, 9pp
Gupta, S.: D(-1) tuples in imaginary quadratic fields. Acta Math. Hungar. 164, 556–569 (2021)
Franušić, Z.: Diophantine quadruples in \({\mathbb{Z} }[\sqrt{4k + 3}]\). Ramanujan J. 17, 77–88 (2008)
Franušić, Z.: A Diophantine problem in \({\mathbb{Z} }[\sqrt{(1 + d)/2}]\). Studia Sci. Math. Hungar. 46, 103–112 (2009)
Franušić, Z.: Diophantine quadruples in the ring of integers of the pure cubic field \({\mathbb{Q} }(\root 3 \of {2})\), Miskolc. Math. Notes 14, 893–903 (2013)
Franušić, Z., Jadrijević, B.: \(D(n)\)-quadruples in the ring of integers of \({\mathbb{Q} }(\sqrt{2}, \sqrt{3})\). Math. Slovaca 69, 1263–1278 (2019)
He, B., Togbé, A., Ziegler, V.: There is no Diophantine quintuple. Trans. Am. Math. Soc. 371, 6665–6709 (2019)
Kihel, A., Kihel, O.: On the intersection and the extendability of \( P_t\) sets. Far East J. Math. Sci. 3, 637–643 (2001)
Knapp, A.W.: Elliptic curves, Mathematical Notes, 40. Princeton University Press, Princeton, NJ (1992)
Soldo, I.: On the existence of Diophantine quadruples in \({\mathbb{Z} }[\sqrt{-2}]\), Miskolc. Math. Notes 14, 265–277 (2013)
Trudgian, T.: Bounds on the number of Diophantine quintuples. J. Number Theory 157, 233–249 (2015)
Zhang, Y., Grossman, G.: On Diophantine triples and quadruples. Notes Number Theory Discrete Math. 21(4), 6–16 (2015)
Acknowledgements
The authors gratefully acknowledge the anonymous referee for his/her valuable comments/suggestions that immensely improved the results as well as the presentation of the paper. The third author is supported by SERB MATRICS Project (No. MTR/2021/000762), Govt. of India.
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
Chakraborty, K., Gupta, S. & Hoque, A. Diophantine Triples with the Property D(n) for Distinct n’s. Mediterr. J. Math. 20, 31 (2023). https://doi.org/10.1007/s00009-022-02240-x
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/s00009-022-02240-x