Results 1 to 10 of about 158,055 (244)

Measures of algebraic approximation to Markoff extremal numbers [PDF]

open access: yesJournal of the London Mathematical Society, 2010
Let xi be a real number which is neither rational nor quadratic over Q. Based on work of Davenport and Schmidt, Bugeaud and Laurent have shown that, for any real number theta, there exist a constant c>0 and infinitely many non-zero polynomials P in Z[T ...
Roy, Damien, Zelo, Dmitrij
core   +2 more sources

Rational Approximations to Certain Algebraic Numbers

open access: yes, 2023
W.M.Schmit[11] conjectured that for any$\;\theta$ with deg$\;\theta\geq 3,$ there is no constant$\;C=C(\theta)$ so that$\;|p-q\theta|>Cq^{-1}$ for every rationa$\;p/q.$ [12,p26] states that the computations of the first several thousand partial quotients
Li, Jinxiang
core   +2 more sources

Fractional parts of powers of real algebraic numbers

open access: yesComptes Rendus. Mathématique, 2022
Let $\alpha $ be a real algebraic number greater than $1$. We establish an effective lower bound for the distance between an integral power of $\alpha $ and its nearest integer.
Bugeaud, Yann
doaj   +1 more source

Multilevel information fusion for cryptographic substitution box construction based on inevitable random noise in medical imaging

open access: yesScientific Reports, 2021
Block cipher has been a standout amongst the most reliable option by which data security is accomplished. Block cipher strength against various attacks relies on substitution boxes.
Muhammad Fahad Khan   +3 more
doaj   +1 more source

On Joint Universality in the Selberg–Steuding Class

open access: yesMathematics, 2023
The famous Selberg class is defined axiomatically and consists of Dirichlet series satisfying four axioms (Ramanujan hypothesis, analytic continuation, functional equation, multiplicativity).
Roma Kačinskaitė   +2 more
doaj   +1 more source

The complexity of approximating the complex-valued Potts model [PDF]

open access: yes, 2021
We study the complexity of approximating the partition function of the $q$-state Potts model and the closely related Tutte polynomial for complex values of the underlying parameters.
Galanis, Andreas   +2 more
core   +3 more sources

Remarks on the approximation to an algebraic number by algebraic numbers. [PDF]

open access: yesMichigan Mathematical Journal, 1986
Die Verff. wenden eine in zwei früheren Arbeiten [vgl. \textit{E. Bombieri}, Acta Math. 148, 255-296 (1982; Zbl 0505.10015) und Verff., J. Reine Angew. Math. 342, 173-196 (1983; Zbl 0516.10024)] entwickelte Methode an, um eine algebraische Zahl durch algebraische Zahlen aus einem passenden reellen algebraischen Zahlkörper effektiv abzuschätzen.
Bombieri, E., Mueller, J.
openaire   +3 more sources

Counting algebraic numbers in short intervals with rational points

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
In 2012 it was proved that real algebraic numbers follow a non­uniform but regular distribution, where the respective definitions go back to H. Weyl (1916) and A. Baker and W. Schmidt (1970).
Vasily I. Bernik   +2 more
doaj   +1 more source

Product of deferred Cesàro and deferred weighted statistical probability convergence and its applications to Korovkin-type theorems

open access: yesUniversitas Scientiarum, 2020
In the present work, we introduce and study the notion of statistical probability convergence for sequences of random variables as well as the idea of statistical convergence for sequences of real numbers, which are defined over a Banach space via the ...
Bidu Bhusan Jena , Susanta Kumar Paikray
doaj   +1 more source

Approximating L2-invariants, and the Atiyah conjecture [PDF]

open access: yes, 2003
Let G be a torsion free discrete group and let \bar{Q} denote the field of algebraic numbers in C. We prove that \bar{Q}[G] fulfills the Atiyah conjecture if G lies in a certain class of groups D, which contains in particular all groups which are ...
Atiyah   +21 more
core   +1 more source

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