Results 21 to 30 of about 120,275 (213)

On some series involving harmonic and skew-harmonic numbers

open access: yesJournal of Classical Analysis, 2023
In this paper, we evaluate in closed form several different series involving the harmonic numbers and skew-harmonic numbers. We consider two classes of series involving these sequences. One class of series involves the product of the $n$th harmonic or skew-harmonic number and a tail.
openaire   +2 more sources

On Spieß’s conjecture on harmonic numbers

open access: yesDiscrete Applied Mathematics, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hai-Tao Jin, Lisa Hui Sun
openaire   +1 more source

ON THE CONVERGENCE OF THE ERDOS HARMONIC SERIES [PDF]

open access: yes, 2003
The purpose of this article is to study the convergence of a few series with the Erdos function.
Tabirca, S., Tabirca, T.
core   +1 more source

rf acceleration with harmonic number jump

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2006
We have recently considered acceleration of protons and heavy ions in a fixed-field alternating-gradient accelerator with nonscaling lattice and linear field profile.
Alessandro G. Ruggiero
doaj   +1 more source

Some summation formulas involving harmonic numbers and generalized harmonic numbers

open access: yesMathematical and Computer Modelling, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Junesang Choi, H. M. Srivastava 0001
openaire   +1 more source

Certain Hermite–Hadamard Inequalities for Logarithmically Convex Functions with Applications

open access: yesMathematics, 2019
In this paper, we discuss various estimates to the right-hand (resp. left-hand) side of the Hermite⁻Hadamard inequality for functions whose absolute values of the second (resp. first) derivatives to positive real powers are log-convex.
Shilpi Jain   +3 more
doaj   +1 more source

A classification of the harmonic frames up to unitary equivalence [PDF]

open access: yes, 2011
Up to unitary equivalence, there are a finite number of tight frames of n vectors for Cd which can be obtained as the orbit of a single vector under the unitary action of an abelian group G (for nonabelian groups there may be uncountably many).
Waldron, Shayne, Chien, T-Y
core   +1 more source

Wave-number-explicit bounds in time-harmonic scattering [PDF]

open access: yes, 2008
In this paper we consider the problem of scattering of time-harmonic acoustic waves by a bounded sound soft obstacle in two and three dimensions, studying dependence on the wave number in two classical formulations of this problem.
Chandler-Wilde, S.N.   +3 more
core   +1 more source

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