Results 11 to 20 of about 7,521 (156)

Walking Cautiously Into the Collatz Wilderness: Algorithmically, Number Theoretically, Randomly [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
Building on theoretical insights and rich experimental data of our preprints, we present here new theoretical and experimental results in three interrelated approaches to the Collatz problem and its generalizations: \emphalgorithmic decidability, random ...
Edward G. Belaga, Maurice Mignotte
doaj   +1 more source

Rational solutions of pairs of diagonal equations, one cubic and one quadratic [PDF]

open access: yes, 2014
We obtain an essentially optimal estimate for the moment of order 32/3 of the exponential sum having argument $\alpha x^3+\beta x^2$. Subject to modest local solubility hypotheses, we thereby establish that pairs of diagonal Diophantine equations, one ...
Baker   +20 more
core   +6 more sources

Two exponential Diophantine equations [PDF]

open access: yesGlasgow Mathematical Journal, 1997
In [3], two open problems were whether either of the diophantine equationswith n ∈ Z and f a prime number, is solvable if ω > 3 and 3 √ ω, but in this paper we allow f to be any (rational) integer and also 3 | ω. Equations of this form and more general ones can effectively be solved [5] with an advanced method based on analytical results, but the ...
openaire   +1 more source

An exponential diophantine equation [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2001
Let p be an odd prime with p > 3. In this paper we give all positive integer solutions (x, y, m, n) of the equation x2 + p2m = yn, gcd (x, y) = 1, n > 2 satisfying 2 | n of 2 ∤ n and p ≢ (−1)(p−1)/2(mod 4n.
openaire   +1 more source

Two exponential diophantine equations [PDF]

open access: yesJournal de théorie des nombres de Bordeaux, 2017
The equation 3 a +5 b -7 c =1, to be solved in non-negative rational integers a,b,c, has been mentioned by Masser as an example for which there is still no algorithm to solve completely. Despite this, we find here all the solutions. The equation y 2 =3 a +2 b +1, to be solved in non-negative rational integers a,b and a rational integer y, has been ...
openaire   +1 more source

Padovan and Perrin numbers of the form 7ᵗ-5ᶻ-3ʸ-2ˣ [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
Consider the Padovan sequence (pₙ)ₙ≥₀ given by pₙ₊₃=pₙ₊₁+pₙ with p₀=p₁=p₂=1. Its companion sequence, the Perrin sequence (℘ₙ)ₙ≥₀, follows the same recursive formula as the Padovan numbers, but with different initial values: p₀=3, p₁=0 and p₂=2.
Djamel Bellaouar   +2 more
doaj   +1 more source

Vinogradov's mean value theorem via efficient congruencing [PDF]

open access: yes, 2011
We obtain estimates for Vinogradov's integral which for the first time approach those conjectured to be the best possible. Several applications of these new bounds are provided.
Arkhipov   +13 more
core   +6 more sources

The Exponential Diophantine Equation 4m2+1x+5m2-1y=(3m)z

open access: yesAbstract and Applied Analysis, 2014
Let m be a positive integer. In this paper, using some properties of exponential diophantine equations and some results on the existence of primitive divisors of Lucas numbers, we prove that if m>90 and 3|m, then the equation 4m2+1x + 5m2-1y=(3m)z has ...
Juanli Su, Xiaoxue Li
doaj   +1 more source

Diophantine networks [PDF]

open access: yes, 2007
We introduce a new class of deterministic networks by associating networks with Diophantine equations, thus relating network topology to algebraic properties. The network is formed by rep- resenting integers as vertices and by drawing cliques between M
Bedogne, C, Masucci, AP, Rodgers, GJ
core   +2 more sources

Small two-variable exponential Diophantine equations [PDF]

open access: yesMathematics of Computation, 1993
We examine exponential Diophantine equations of the form a b x = c d y + e a{b^x} = c{d^y} + e . Consider a ≤ 50 a \leq 50 , c ≤
openaire   +1 more source

Home - About - Disclaimer - Privacy