Results 1 to 10 of about 4,804,838 (283)

Absolute φ − | C , α , β ; δ | k $\varphi- \vert C, \alpha, \beta; \delta\vert _{k}$ summability of infinite series [PDF]

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we established a generalized theorem on a minimal set of sufficient conditions for absolute summability factors by applying a sequence of a wider class (quasi-power increasing sequence) and the absolute Cesàro φ − | C , α , β ; δ | k ...
Smita Sonker, Alka Munjal
doaj   +2 more sources

A new note on factored infinite series and trigonometric Fourier series

open access: yesComptes Rendus. Mathématique, 2021
In this paper, we have proved two main theorems under more weaker conditions dealing with absolute weighted arithmetic mean summability factors of infinite series and trigonometric Fourier series.
Bor, Hüseyin
doaj   +2 more sources

Evaluating Infinite Series Involving Harmonic Numbers by Integration

open access: yesMathematics
Eight infinite series involving harmonic-like numbers are coherently and systematically reviewed. They are evaluated in closed form exclusively by integration together with calculus and complex analysis. In particular, a mysterious series W is introduced
Chunli Li, Wenchang Chu
doaj   +2 more sources

Infinite series of time-dependent Dyson maps [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2021
We propose and explore a scheme that leads to an infinite series of time-dependent Dyson maps which associate different Hermitian Hamiltonians to a uniquely specified time-dependent non-Hermitian Hamiltonian.
A. Fring, Rebecca Tenney
semanticscholar   +1 more source

Infinite series about harmonic numbers inspired by Ramanujan–like formulae

open access: yesElectronic Research Archive, 2023
By employing the coefficient extraction method from hypergeometric series, we shall establish numerous closed form evaluations for infinite series containing central binomial coefficients and harmonic numbers, including several conjectured ones made by Z.
Chunli Li, W. Chu
semanticscholar   +1 more source

Estimation of the stress-strain state of orthotropic plates on elastic foundation using the bimoment theory [PDF]

open access: yesE3S Web of Conferences, 2023
The study is devoted to the development of the bimoment theory and the method for calculating thick plates in the framework of the three-dimensional theory of elasticity.
Usarov M.K.   +4 more
doaj   +1 more source

Infinite Series Based on Bessel Zeros

open access: yesApplied Sciences, 2023
An interesting series based on Bessel function roots (zeros) is discussed and numerically analyzed. The novel-derived simplified general solutions are based on Lommel polynomials.
Kamil Urbanowicz
doaj   +1 more source

Evaluation of Infinite Series by Integrals

open access: yesMathematics, 2022
We examine a large class of infinite triple series and establish a general summation formula. This is done by expressing the triple series in terms of definite integrals involving arctangent function that are evaluated in turn in closed forms.
Chunli Li, Wenchang Chu
doaj   +1 more source

On a Family of Infinite Series with Reciprocal Catalan Numbers

open access: yesAxioms, 2022
We study a certain family of infinite series with reciprocal Catalan numbers. We first evaluate two special candidates of the family in closed form, where we also present some Catalan–Fibonacci relations.
Kunle Adegoke   +2 more
doaj   +1 more source

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

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