Results 11 to 20 of about 932,641 (268)

On the Solution of Volterra Integro-differential Equations using a Modified Adomian Decomposition Method

open access: yesJambura Journal of Mathematics, 2023
The Adomian decomposition method’s effectiveness has been demonstrated in recent research, the process requires several iterations and can be time-consuming.
Kabiru Oyeleye Kareem   +5 more
doaj   +1 more source

Note on the irrationality of certain infinite series [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
The aim of this paper is to introduce new criteria for real infinite series that satisfy a specific property and yield an irrational sum. These criteria are based on an extension of previous ideas proposed by Erdos.
Pavel Rucki
doaj   +1 more source

Convergence acceleration and accuracy improvement in power bus impedance calculation with a fast algorithm using cavity modes [PDF]

open access: yes, 2005
Based on the cavity-mode model, we have developed a fast algorithm for calculating power bus impedance in multilayer printed circuit boards. The fast algorithm is based on a closed-form expression for the impedance Z matrix of a rectangular power bus ...
Koga, Ryuji   +3 more
core   +1 more source

Expansion of multiple series in infinite diagonals

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013
In this paper a method of summation of double absolutely convergent numerical series was obtained. This method was named the expansion of double numerical series in infinite diagonals.
Anton A Korneev, Olga A Doroshkevich
doaj   +1 more source

Eisenstein series for infinite-dimensional U-duality groups [PDF]

open access: yes, 2012
We consider Eisenstein series appearing as coefficients of curvature corrections in the low-energy expansion of type II string theory four-graviton scattering amplitudes.
A Basu   +74 more
core   +2 more sources

New BBP-Type Formulae for π Derived from New Forms of Taylor Expansions of Inverse Tangent Function

open access: yesMathematics, 2022
In this work, we give two new Taylor expansions of arctan(x + ω), where ω represents a finite increment of x. We discover several remarkable infinite series from these expansions by special substitutions.
Xin Wu, Zhongfan Chen, Yinan Zhu
doaj   +1 more source

On Faster Convergent Infinite Series

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
Suffcient conditions, necessary conditions for faster convergent infinite series, faster 𝜏-convergent infinite series are studied. The faster convergence of infinite series of Kummer's type is proved.
Dušan Holý   +2 more
doaj   +1 more source

DIDACTIC VALUE OF MATHEMATICAL CONCEPT

open access: yesНаука Красноярья, 2015
In article the didactic value of exact mathematical concept on the example of concepts of the section «Numerical Ranks» reveals. The definition of concept of a row specified in this article, fixes the real defining signs allowing to identify unambi ...
Elena Evgenevna Alekseeva
doaj   +1 more source

Series of Floor and Ceiling Functions—Part II: Infinite Series

open access: yesMathematics, 2022
In this part of a series of two papers, we extend the theorems discussed in Part I for infinite series. We then use these theorems to develop distinct novel results involving the Hurwitz zeta function, Riemann zeta function, polylogarithms and Fibonacci ...
Dhairya Shah   +4 more
doaj   +1 more source

Weyl group multiple Dirichlet series constructed from quadratic characters [PDF]

open access: yes, 2006
We construct multiple Dirichlet series in several complex variables whose coefficients involve quadratic residue symbols. The series are shown to have an analytic continuation and satisfy a certain group of functional equations.
A. Diaconu   +16 more
core   +3 more sources

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