Results 11 to 20 of about 10,640,447 (355)

Harmonic sets and the harmonic prime number theorem [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2005
We restrict primes and prime powers to sets H(x)= U∞n=1 (x/2n, x/(2n-1)). Let θH(x)= ∑ pεH(x)log p. Then the error in θH(x) has, unconditionally, the expected order of magnitude θH (x)= xlog2 + O(√x). However, if ψH(x)= ∑pmε H(x) log p then ψH(x)= xlog2+
Broughan, Kevin A., Casey, Rory J.
core   +3 more sources

Ramanujan's Harmonic Number Expansion [PDF]

open access: green, 2005
7 pages. Acknowledgements added. Many typos corrected.
Mark B. Villarino
openalex   +3 more sources

Unitary Harmonic Numbers [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
If d ∗ ( n ) {d^ \ast }(n) and σ ∗ ( n ) {\sigma ^ \ast }(n) denote the number and sum, respectively, of the unitary divisors of the natural number n n
Hagis, Peter jun., Lord, Graham
openaire   +1 more source

Dedekind harmonic numbers

open access: yesProceedings - Mathematical Sciences, 2021
The harmonic sums \(\sum_{r=k+1}^n \frac{1}{r}\) are not integers for any \(k \geq 1\). One way of proving this uses the Bertrand postulate that there is always a prime strictly between \(k\) and \(2k\) if \(k \geq 2\). The paper under review considers the more general analogous sums \(h_K(n) := \sum_{r=1}^n \frac{a_r}{r}\) where \(a_r\) is the number ...
Çağatay Altuntaş, Haydar Göral
openaire   +2 more sources

A note on harmonic number identities, Stirling series and multiple zeta values [PDF]

open access: yesInternational Journal of Number Theory, 2018
We study a general type of series and relate special cases of it to Stirling series, infinite series discussed by Choi and Hoffman, and also to special values of the Arakawa–Kaneko zeta function, studied before amongst others by Candelpergher and Coppo ...
Markus Kuba, A. Panholzer
semanticscholar   +1 more source

Infinitary harmonic numbers [PDF]

open access: yesBulletin of the Australian Mathematical Society, 1990
The infinitary divisors of a natural number n are the products of its divisors of the , where py is an exact prime-power divisor of n and (where yα = 0 or 1) is the binary representation of y. Infinitary harmonic numbers are those for which the infinitary divisors have integer harmonic mean.
Hagis, Peter jun., Cohen, Graeme L.
openaire   +1 more source

Iterated harmonic numbers

open access: yes, 2023
13 pages, 2 ...
Ash, J Marshall   +3 more
openaire   +2 more sources

Harmonic numbers and finite groups [PDF]

open access: yesRendiconti del Seminario Matematico della Università di Padova, 2014
Given a finite group G , let {\tau} (G) be the number of normal subgroups of G ...
Baishya, Sekhar Jyoti, Das, Ashish Kumar
openaire   +1 more source

Generalization in diffusion models arises from geometry-adaptive harmonic representation [PDF]

open access: yesInternational Conference on Learning Representations, 2023
Deep neural networks (DNNs) trained for image denoising are able to generate high-quality samples with score-based reverse diffusion algorithms. These impressive capabilities seem to imply an escape from the curse of dimensionality, but recent reports of
Zahra Kadkhodaie   +3 more
semanticscholar   +1 more source

Umbral Methods and Harmonic Numbers

open access: yesAxioms, 2018
The theory of harmonic-based functions is discussed here within the framework of umbral operational methods. We derive a number of results based on elementary notions relying on the properties of Gaussian integrals.
Dattoli G.   +3 more
openaire   +7 more sources

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