Results 11 to 20 of about 13,363 (161)

Spherical Linear Diophantine Fuzzy Soft Rough Sets with Multi-Criteria Decision Making

open access: yesAxioms, 2021
Modeling uncertainties with spherical linear Diophantine fuzzy sets (SLDFSs) is a robust approach towards engineering, information management, medicine, multi-criteria decision-making (MCDM) applications. The existing concepts of neutrosophic sets (NSs),
Masooma Raza Hashmi   +4 more
doaj   +1 more source

A note on the Diophantine equation (xᵏ-1)(yᵏ-1)²=zᵏ-1 [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
We prove that, for k≥10, the Diophantine equation (xᵏ-1)(yᵏ-1)²=zᵏ-1 in positive integers x, y, z, k with z>1, has no solutions satisfying ...
Yangcheng Li
doaj   +1 more source

Diophantine Approximation, Ostrowski Numeration and the Double-Base Number System [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
Analysis of ...
Valerie Berthe, Laurent Imbert
doaj   +1 more source

Best Simultaneous Diophantine Approximations under a Constraint on the Denominator [PDF]

open access: yes, 2005
We investigate the problem of best simultaneous Diophantine approximation under a constraint on the denominator, as proposed by Jurkat. New lower estimates for optimal approximation constants are given in terms of critical determinants of suitable star ...
Aliev, Iskander, Gruber, Peter
core   +5 more sources

Tilings, Quasicrystals, Discrete Planes, Generalized Substitutions, and Multidimensional Continued Fractions [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2001
The aim of this paper is to give an overview of recent results about tilings, discrete approximations of lines and planes, and Markov partitions for toral automorphisms.The main tool is a generalization of the notion of substitution.
Pierre Arnoux   +3 more
doaj   +1 more source

Simultaneous Diophantine approximation

open access: yesDuke Mathematical Journal, 1946
The simplest problems of Diophantine approximation relate to the approximation of a single irrational number 0 by rational numbers pjq, and the principal question is how small we can make the error 0 — pjq in relation to q for infinitely many approximations. It is well known that this question can be answered almost completely in terms of the continued
Davenport, H., Mahler, K.
openaire   +2 more sources

Restricted diophantine approximation [PDF]

open access: yesJournal of the Australian Mathematical Society, 1977
AbstractThe problem considered is that of approximating irrationals α by rationals p/q where p and q avoid certain congruence classes mod 2k for certain integers k. Results are obtained which give close bounds on a number c such that |α - p/q| < c/q2 has infinitely many solutions where p and q can be expressed as the sum of three squares.
openaire   +2 more sources

Metrical Diophantine approximation for quaternions [PDF]

open access: yes, 2014
Analogues of the classical theorems of Khintchine, Jarnik and Jarnik-Besicovitch in the metrical theory of Diophantine approximation are established for quaternions by applying results on the measure of general `lim sup' sets.Comment: 30 pages.
Beresnevich   +27 more
core   +2 more sources

Extension of simultaneous Diophantine approximation algorithm for partial approximate common divisor variants

open access: yesIET Information Security, 2021
A simultaneous Diophantine approximation (SDA) algorithm takes instances of the partial approximate common divisor (PACD) problem as input and outputs a solution.
Wonhee Cho, Jiseung Kim, Changmin Lee
doaj   +1 more source

Expanding measures: Random walks and rigidity on homogeneous spaces

open access: yesForum of Mathematics, Sigma, 2023
Let G be a real Lie group, $\Lambda
Roland Prohaska   +2 more
doaj   +1 more source

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