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Harmonic sets and the harmonic prime number theorem [PDF]

open access: bronzeBulletin of the Australian Mathematical Society, 2005
We restrict primes and prime powers to sets . Let . Then the error in θH(x) has, unconditionally, the expected order of magnitude . However, if then ψH (x) = x log 2 + O (log x). Some reasons for and consequences of these sharp results are explored. A proof is given of the “harmonic prime number theorem”, πH (x)/π (x) → log 2.
Kevin Broughan, Rory J. Casey
core   +6 more sources

Polynomials Related to Harmonic Numbers and Evaluation of Harmonic Number Series I [PDF]

open access: greenApplicable Analysis and Discrete Mathematics, 2009
In this paper we focus on r-geometric polynomials, r-exponential polynomials and their harmonic versions. It is shown that harmonic versions of these polynomials and their generalizations are useful to obtain closed forms of some series related to harmonic numbers. 2000 Mathematics Subject Classification. 11B73, 11B75, 11B83.
Ayhan Dil, Veli Kurt
core   +8 more sources

New Harmonic Number Series

open access: diamondAppliedMath
Based on a recent representation of the psi function due to Guillera and Sondow and independently Boyadzhiev, new closed forms for various series involving harmonic numbers and inverse factorials are derived.
Kunle Adegoke, Robert Frontczak
doaj   +4 more sources

On the number of harmonic frames

open access: bronzeApplied and Computational Harmonic Analysis, 2018
There is a finite number $h_{n,d}$ of tight frames of $n$ distinct vectors for $\mathbb{C}^d$ which are the orbit of a vector under a unitary action of the cyclic group $\mathbb{Z}_n$. These cyclic harmonic frames (or geometrically uniform tight frames) are used in signal analysis and quantum information theory, and provide many tight frames of ...
Simon Marshall, Shayne Waldron
openalex   +5 more sources

rf acceleration with harmonic number jump [PDF]

open access: diamondPhysical 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   +2 more sources

On the number of nodal domains of spherical harmonics [PDF]

open access: greenTopology, 1996
It is well known that the \(n\)-th eigenfunction to one-dimensional Sturm-Liouville eigenvalue problems has exactly \(n - 1\) nodes, i.e. non-degenerate zeros. For higher dimensions, it is much more complicated to obtain general statements on the zeros of eigenfunctions.
Josef Leydold
openalex   +7 more sources

Evaluation of Harmonic Number Series Involving the Binomial Coefficient C(3n,n) in the Denominator by Integration

open access: diamondAppliedMath
Two classes of series involving differences of harmonic numbers and the binomial coefficients C(3n,n) are evaluated in closed form. The classes under consideration are ∑k=0∞H3k+1−Hk(3k+1)3kkkmzkand∑k=0∞H2k−Hk(3k+1)3kkkmzk, where z is a complex number and
Kunle Adegoke, Robert Frontczak
doaj   +2 more sources

The Harmonic Pitching NACA 0018 Airfoil in Low Reynolds Number Flow

open access: goldEnergies
This study investigates the aerodynamic performance of a symmetric NACA 0018 airfoil under harmonic pitching motions at low Reynolds numbers, a regime characterized by the presence of laminar separation bubbles and their impact on aerodynamic forces. The
Jan Michna   +2 more
doaj   +2 more sources

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