Virtualconference
H $D(n)$-sets with square elements
Auteurs : Dujella, Andrej (Auteur de la Conférence)
CIRM (Editeur )
CIRM (Editeur )
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- ADŽAGA, Nikola, DUJELLA, Andrej, KRESO, Dijana, et al. Triples which are D (n)-sets for several n's. Journal of Number Theory, 2018, vol. 184, p. 330-341. - https://doi.org/10.1016/j.jnt.2017.08.024
- DUJELLA, Andrej et PETRIČEVIĆ, Vinko. Diophantine quadruples with the properties $D (n_1)$ and $D (n_2)$ $D (n2)$. Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2020, vol. 114, no 1, p. 21. - https://doi.org/10.1007/s13398-019-00747-9
- DUJELLA, Andrej et PETRIČEVIĆ, Vinko. Doubly regular Diophantine quadruple. Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas, 2020, vol. 114, art 189 - https://doi.org/10.1007/s13398-020-00921-4
- DUJELLA, Andrej, KAZALICKI, Matija, et PETRIČEVIĆ, Vinko. D (n)-quintuples with square elements. arXiv preprint arXiv:2011.01684, 2020. - https://arxiv.org/abs/2011.01684
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Résumé :
For an integer n, a set of distinct nonzero integers $\left \{ a_{1},a_{2},...a_{m} \right \}$ such that $a_{i}a_{j}+n$ is a perfect square for all 1 ≤ i < j ≤ m, is called a Diophantine m-tuple with the property $D(n)$ or simply a $D(n)$-set. $D(1)$-sets are known as Diophantine m-tuples. When considering $D(n)$-sets, usually an integer n is fixed in advance. However, we may ask if a set can have the property $D(n)$ for several different n’s. For example, {8, 21, 55} is a $D(1)$-triple and $D(4321)$-triple. In a joint work with Adzaga, Kreso and Tadic, we presented several families of Diophantine triples which are $D(n)$-sets for two distinct n’s with $n\neq 1$. In a joint work with Petricevic we proved that there are infinitely many (essentially different) quadruples which are simultaneously $D(n_{1})$-quadruples and $D(n_{2})$-quadruples with $n_{1}\neq n_{2}$. Morever, the elements in some of these quadruples are squares, so they are also $D(0)$-quadruples. E.g. $\left \{ 54^{2}, 100^{2}, 168^{2}, 364^{2}\right \} $ is a $D(8190^{2})$, $D(40320^{2})$ and $D(0)$-quadruple. In this talk, we will describe methods used in constructions of mentioned triples and quadruples. We will also mention a work in progress with Kazalicki and Petricevic on $D(n)$-quintuples with square elements (so they are also $D(0)$-quintuples). There are infinitely many such quintuples. One example is a $D(4804802)$-quintuple $\left \{ 225^{2}, 286^{2}, 819^{2}, 1408^{2}, 2548^{2}\right \}$.
Keywords : diophantine triples; diophantine quadruples; elliptic curves
Codes MSC :
11D09
- Quadratic and bilinear equations
11G05
- Elliptic curves over global fields
11Y50
- Computer solution of Diophantine equations
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Informations sur la Vidéo
Réalisateur : Hennenfent, GuillaumeLangue : Anglais Date de publication : 01/12/2020 Date de captation : 26/11/2020 Collection : Research talks ; Number Theory Durée : 00:48:41 Domaine : Number Theory Audience : Chercheurs ; Doctorants , Post - Doctorants Download : https://videos.cirm-math.fr/2020-11-26_Dujella.mp4 
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Informations sur la Rencontre Virtuelle
Nom de la rencontre : Jean-Morlet Chair 2020 - Conference: Diophantine Problems, Determinism and Randomness / Chaire Jean-Morlet 2020 - Conférence : Problèmes diophantiens, déterminisme et aléatoireOrganisateurs de la rencontre : Rivat, Joël ; Tichy, Robert Dates : 23/11/2020 - 27/11/2020 Année de la rencontre : 2020 URL Congrès : https://www.chairejeanmorlet.com/2256.html
Citation Data
DOI : 10.24350/CIRM.V.19686903Cite this video as: Dujella, Andrej (2020). $D(n)$-sets with square elements.CIRM . Audiovisual resource. doi:10.24350/CIRM.V.19686903 URI : http://dx.doi.org/10.24350/CIRM.V.19686903 |
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