The Fermat-type equation with signature (2, 2, n) and Bunyakovsky conjecture

Autor: Sawian Jaidee, Korakot Saosoong
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Songklanakarin Journal of Science and Technology (SJST), Vol 44, Iss 3, Pp 779-784 (2022)
Druh dokumentu: article
ISSN: 0125-3395
DOI: 10.14456/sjst-psu.2022.104
Popis: We first discuss the Fermat-type equation with signature (2, 𝑚, 𝑛), which is the Diophantine equation in the shape 𝑥 2 + 𝑦 𝑚 = 𝑧 𝑛 , where 𝑥, 𝑦 and 𝑧 are unknown integers, and 𝑚, 𝑛 are fixed positive integers greater than 1. This kind of equations has been particularly focused on our work here in the case 𝑚 = 2, 𝑛 = 5 and 𝑦 = 𝑝 is a fixed rational prime. Then the first result describing the condition of such a prime 𝑝 in order to illustrate that this certain equation has an integer solution (𝑥, 𝑦) when 𝑝 ≡ 1(mod 4) and gcd(𝑥, 𝑝) = 1, and the second result stating that the equation has no integer solution (𝑥, 𝑦) when 𝑝 ≡ 3(mod 4) are provided. Lastly, we will indicate that the results of Be ́rczes and Pink about solving the equation 𝑥 2 + 𝑝 2𝑘 = 𝑧 𝑛 in 2008 have been generalized in the particular cases (𝑛, 𝑘) = (3,1) and (5,1), and additionally present that the first result and also its analogous result in the particular case 𝑛 = 3 can be linked to the Bunyakovsky conjecture.
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