Zobrazeno 1 - 10
of 2 281
pro vyhledávání: '"rational approximation"'
Publikováno v:
AppliedMath, Vol 4, Iss 3, Pp 868-888 (2024)
In this work, we consider the properties of the two-term Machin-like formula and develop an algorithm for computing digits of π by using its rational approximation. In this approximation, both terms are constructed by using a representation of 1/π
Externí odkaz:
https://doaj.org/article/6632b60cc7474958846d8f8088654e60
Publikováno v:
Partial Differential Equations in Applied Mathematics, Vol 12, Iss , Pp 101003- (2024)
This paper introduces a block hybrid method designed for the effective resolution of Lane–Emden equations, which are characterized as second-order boundary value problems incorporating a singularity at the origin. Utilizing a strategic selection of
Externí odkaz:
https://doaj.org/article/741d15cf0257442bbe756ffe93e4ea9d
Publikováno v:
Iranian Journal of Numerical Analysis and Optimization, Vol 14, Iss Issue 2, Pp 391-416 (2024)
This manuscript puts forward two new generalized families of Jarratt’s iterative schemes for deciding the solution of scalar and systems of non-linear equations. The schemes involve weight functions that are based on bi-variate rational approximati
Externí odkaz:
https://doaj.org/article/6a386ed8c15046f8b52cc65c806710f5
Publikováno v:
Parasites & Vectors, Vol 17, Iss 1, Pp 1-14 (2024)
Abstract Background The unplanned and intensified use of insecticides to control mosquito-borne diseases has led to an upsurge of resistance to commonly used insecticides. Aedes aegypti, the main vector of dengue, chikungunya, and Zika virus, is prim
Externí odkaz:
https://doaj.org/article/a73910cc708243b3894a8afb12d3a13d
Autor:
Weixiang Xie, Jie Song
Publikováno v:
Mathematics, Vol 12, Iss 19, p 2991 (2024)
Multiple-input multiple-output (MIMO) linear time-invariant (LTI) systems exhibit enormous computational costs for high-dimensional problems. To address this problem, we propose a novel approach for reducing the dimensionality of MIMO systems. The me
Externí odkaz:
https://doaj.org/article/adfa693ebf0f4cdeb800c78b3f5a48e2
Autor:
Svetozar Margenov
Publikováno v:
Mathematics, Vol 12, Iss 14, p 2266 (2024)
In this paper, we develop a new Best Uniform Rational Approximation-Semi-Discrete (BURA-SD) method taking into account the singularities of the solution of fractional diffusion problems in polygonal domains. The complementary capabilities of the expo
Externí odkaz:
https://doaj.org/article/5395eae431e44de99513d623ba26d8ad
Publikováno v:
Mathematics in Engineering, Vol 5, Iss 4, Pp 1-38 (2023)
We introduce several spatially adaptive model order reduction approaches tailored to non-coercive elliptic boundary value problems, specifically, parametric-in-frequency Helmholtz problems. The offline information is computed by means of adaptive fin
Externí odkaz:
https://doaj.org/article/51c1fff642ea4a30ab3bf46479b04355
Publikováno v:
Nuclear Engineering and Technology, Vol 55, Iss 7, Pp 2516-2533 (2023)
Several practical methods for accelerating the depletion calculation in a GPU-based Monte Carlo (MC) code PRAGMA are presented including the multilevel spectral collapse method and the vectorized Chebyshev rational approximation method (CRAM). Since
Externí odkaz:
https://doaj.org/article/ba5895a67c1f4027bafe2d718fe9946b
Publikováno v:
Известия Саратовского университета. Новая серия. Серия Математика. Механика. Информатика, Vol 23, Iss 2, Pp 157-168 (2023)
We consider the problems of multiple interpolation of analytic functions $f(z)=f_0+f_1z+\dots$ in the unit disk with node $z=0$ by means of simple partial fractions (logarithmic derivatives of algebraic polynomials) with free poles and with all poles
Externí odkaz:
https://doaj.org/article/cafed1e05e55458cac8d12c8f545fd67