Results 1 to 10 of about 156 (124)

On two Diophantine inequalities over primes [PDF]

open access: yesIndagationes Mathematicae, 2018
21 ...
Min Zhang, Jinjiang Li
exaly   +4 more sources

Cubic Diophantine inequalities [PDF]

open access: yesMathematika, 1982
Let \(\lambda_1,\ldots,\lambda_s\) be non-zero real numbers and not all ratios \(\lambda_i/\lambda_j\) be rational. \textit{H. Davenport} and \textit{K. F. Roth} [Mathematika 2, 81--96 (1955; Zbl 0066.29301)] proved that the values taken by \(\lambda_1x^3_1+\cdots+\lambda_8x^3_8\) at integer points \(x_1,\ldots,x_8\), are dense on the real line. Later,
Baker, R. C.   +2 more
  +7 more sources

On a Diophantine Inequality with s Primes

open access: yesJournal of Mathematics, 2021
Let ...
Xiaofei Yan, Lu Zhang
doaj   +1 more source

On the Ternary Exponential Diophantine Equation Equating a Perfect Power and Sum of Products of Consecutive Integers

open access: yesMathematics, 2021
Consider the Diophantine equation yn=x+x(x+1)+⋯+x(x+1)⋯(x+k), where x, y, n, and k are integers. In 2016, a research article, entitled – ’power values of sums of products of consecutive integers’, primarily proved the inequality n= 19,736 to obtain all ...
S. Subburam   +6 more
doaj   +1 more source

On the Multiplicity of a Proportionally Modular Numerical Semigroup

open access: yesDiscrete Dynamics in Nature and Society, 2021
A proportionally modular numerical semigroup is the set Sa,b,c of nonnegative integer solutions to a Diophantine inequality of the form ax mod b≤cx, where a,b, and c are positive integers.
Ze Gu
doaj   +1 more source

One Diophantine inequality with unlike powers of prime variables

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we show that if λ 1 $\lambda_{1}$ , λ 2 $\lambda_{2}$ , λ 3 $\lambda_{3}$ , λ 4 $\lambda _{4}$ , λ 5 $\lambda_{5}$ are nonzero real numbers not all of the same sign, η is real, 0 < σ < 1 720 ...
Wenxu Ge, Weiping Li
doaj   +1 more source

Exceptional Sets for Diophantine Inequalities [PDF]

open access: yesInternational Mathematics Research Notices, 2013
We apply Freeman's variant of the Davenport-Heilbronn method to investigate the exceptional set of real numbers not close to some value of a given real diagonal form at an integral argument. Under appropriate conditions, we show that the exceptional set in the interval [-N,N] has measure O(N^{1-c}), for a positive number c.
Parsell, Scott T., Wooley, Trevor D.
openaire   +3 more sources

A System of Two Diophantine Inequalities with Primes [PDF]

open access: yesJournal of Mathematics, 2021
Let 1 < d < c < 128 / 119
Xue Han, Huafeng Liu, Deyu Zhang
openaire   +3 more sources

Observation of vibrating systems at different time instants

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
In this paper, we obtain new observability inequalities for the vibrating string. This work was motivated by a recent paper of A. Szijártó and J.
Ambroise Vest
doaj   +1 more source

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