Results 81 to 90 of about 839 (184)

On Diophantine singlefold specifications

open access: yesLe Matematiche
Summary: Consider an \((m+1)\)-ary relation \(\mathcal{R}\) over the set \(\mathbb{N}\) of natural numbers. Does there exist an arithmetical formula \(\varphi (a_0, \ldots, a_m, x_1, \ldots, x_k)\), not involving universal quantifiers, negation, or implication, such that representation and univocity conditions, viz., \[ \begin{aligned} \mathcal{R ...
Domenico Cantone   +2 more
openaire   +2 more sources

A Diophantine equation appearing in Diophantine approximation

open access: yesIndagationes Mathematicae, 2001
All Diophantine equations \(ax^2+ by^2+ cz^2= 1+dxyz\) with \(a,b,c,d\in \mathbb{N}\) and \(a\mid d\), \(b\mid d\), \(c\mid d\), with solutions \((x,y,z)\in \mathbb{N}^3\) are classified. Equations of this type occur in connection with the approximation spectrum for quaternions.
Jin, Yuan, Schmidt, Asmus L.
openaire   +1 more source

Application of the group action approach to solving linear Diophantine equations [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The article substantiates a method for solving linear Diophantine equations using the theory of group actions. The purpose of this paper is to introduce actions of certain groups on the set of linear Diophantine equations and to study their ...
Chistov, Ivan Sergeevich   +1 more
doaj   +1 more source

On a diophantine equation

open access: yes, 1967
Formulae are given furnishing all non-trivial integer solutions of the equation \[ (x^2-t^2)(y^2-t^2)=\biggl(\biggl({y-x\over 2}\biggr)^2-t^2\biggr)^2 \] considered for \(t=1\) by the reviewer and \textit{W. Sierpiński} [Elem. Math. 18, 132--133 (1963; Zbl 0126.07301)].
openaire   +2 more sources

Introduction to Diophantine Approximation

open access: yesFormalized Mathematics, 2015
Abstract In this article we formalize some results of Diophantine approximation, i.e. the approximation of an irrational number by rationals. A typical example is finding an integer solution (x, y) of the inequality |xθ − y| ≤ 1/x, where 0 is a real number. First, we formalize some lemmas about continued fractions. Then we prove that the
openaire   +2 more sources

On the Existence of Solutions of Diophantine Equations Related to Subbalancing Numbers

open access: yesJournal of Mathematics
In this paper, we introduce a new sequence of subbalancing numbers by considering balancing numbers as the values of D in the Diophantine equations provided by subbalancing numbers.
Selin Sarı, Gül Karadeniz-Gözeri
doaj   +1 more source

From Diophantine approximations to Diophantine equations

open access: yesKeldysh Institute Preprints, 2016
Summary: Let in the real \(n\)-dimensional space \(\mathbb{R}^n=\{X\}\) be given \(m\) real homogeneous forms \(f_i(X), i=1,\dotsc,m, 2\leqslant m\leqslant n\). The convex hull of the set of points \(G(X)=(|f_1(X)|,\dotsc,|f_m(X)|)\) for integer \(X\in\mathbb Z^n\) in many cases is a convex polyhedral set. Its boundary for \(||X||
openaire   +2 more sources

Spherical Linear Diophantine Fuzzy Graphs: Unleashing the Power of Fuzzy Logic for Uncertainty Modeling and Real-World Applications

open access: yesAxioms
The theory of spherical linear Diophantine fuzzy sets (SLDFS) boasts several advantages over existing fuzzy set (FS) theories such as Picture fuzzy sets (PFS), spherical fuzzy sets (SFS), and T-spherical fuzzy sets (T-SFS).
Mani Parimala, Saeid Jafari
doaj   +1 more source

Fuzzy MABAC Deep Learning for Diagnosis of Alzheimers Disease: Analysis of Complex Propositional Linear Diophantine Fuzzy Power Aggregation Insights

open access: yesTransactions on Fuzzy Sets and Systems
 Alzheimers disease is an unpredictable and progressive neurodegenerative disorder that initially affects memory thinking and behavior. Some key features of Alzheimers disease are memory loss, cognitive decline, behavioral changes, disorientation ...
Zeeshan Ali
doaj  

关于方程x2-1=yn

open access: yes四川大学学报. 自然科学版, 1962
Recently, Chao Koc 1 3' E2:i proved that the diophantine equationshave no integral solutions x,y with xy dpO..n this paper, I shall prove that the diophantine equation is impossible when p = 5, 7, 11, 13, 17, 19, 23, 29, 41, 43, 47,.> -r. 53, 61, 71, 79,
张世勋
doaj  

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