Results 61 to 70 of about 1,611,376 (286)

On a Fractal Representation of the Density of Primes

open access: yesRecoletos Multidisciplinary Research Journal, 2014
The number of primes less or equal to a real number x, π(x), has been approximated in the past by the reciprocal of the logarithm of the number x. Such an approximation works well when x is large but it can be poor when x is small.
Joy Mirasol, Efren O. Barabat
doaj   +1 more source

Numerical Calculations to Grasp a Mathematical Issue Such as the Riemann Hypothesis

open access: yesInformation, 2020
This article presents the use of data processing to apprehend mathematical questions such as the Riemann Hypothesis (RH) by numerical calculation. Calculations are performed alongside graphs of the argument of the complex numbers ζ ( x + i y ...
Michel Riguidel
doaj   +1 more source

New Analytical Formulas for the Rank of Farey Fractions and Estimates of the Local Discrepancy

open access: yesMathematics
New analytical formulas are derived for the rank and the local discrepancy of Farey fractions. The new rank formula is applicable to all Farey fractions and involves sums of a lower order compared to the searched one.
Rogelio Tomás García
doaj   +1 more source

Bounding Sn (t) on the Riemann hypothesis [PDF]

open access: yesMathematical Proceedings of the Cambridge Philosophical Society, 2017
Let $S(t) = {1}/{\pi} \arg \zeta \big(\hh + it \big)$ be the argument of the Riemann zeta-function at the point 1/2 + it. For n ⩾ 1 and t > 0 define its iterates $$\begin{equation*} S_n(t) = \int_0^t S_{n-1}(\tau) \,\d\tau\, + \delta_n\,, \end{equation*}
E. Carneiro, Andrés Chirre
semanticscholar   +1 more source

On Balazard, Saias, and Yor's equivalence to the Riemann Hypothesis

open access: yes, 2013
Balazard, Saias, and Yor proved that the Riemann Hypothesis is equivalent to a certain weighted integral of the logarithm of the Riemann zeta-function along the critical line equaling zero.
Bui, H. M.   +2 more
core   +1 more source

Interval‐valued Caputo–Fabrizio fractional derivative in continuous programming

open access: yesAsian Journal of Control, EarlyView.
Abstract This study investigates a novel class of variational programming problems characterized by fractional interval values, formulated under the Caputo–Fabrizio fractional derivative with an exponential kernel. Invex and generalized invex functions are used to discuss the Mond–Weir‐type dual problem for the considered variational problem.
Krishna Kummari   +2 more
wiley   +1 more source

Development of a New Zeta Formula and Its Role in Riemann Hypothesis and Quantum Physics

open access: yesMathematics, 2023
In this study, we investigated a new zeta formula in which the zeta function can be expressed as the sum of an infinite series of delta and cosine functions.
Saadeldin Abdelaziz   +2 more
doaj   +1 more source

The Lindelöf hypothesis for primes is equivalent to the Riemann hypothesis

open access: yes, 2020
We recast the classical Lindelöf hypothesis as an estimate for the sums ∑ n ≤ x n − i t \sum _ ...
S. Gonek, S. W. Graham, Yoonbok Lee
semanticscholar   +1 more source

A probabilistic diagnostic for Laplace approximations: Introduction and experimentation

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Many models require integrals of high‐dimensional functions: for instance, to obtain marginal likelihoods. Such integrals may be intractable, or too expensive to compute numerically. Instead, we can use the Laplace approximation (LA). The LA is exact if the function is proportional to a normal density; its effectiveness therefore depends on ...
Shaun McDonald, Dave Campbell
wiley   +1 more source

Convergence properties of dynamic mode decomposition for analytic interval maps

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract Extended dynamic mode decomposition (EDMD) is a data‐driven algorithm for approximating spectral data of the Koopman operator associated to a dynamical system, combining a Galerkin method with N$N$ functions and a quadrature method with M$M$ quadrature nodes.
Elliz Akindji   +3 more
wiley   +1 more source

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