Results 21 to 30 of about 427 (155)

On sums of generalized Ramanujan sums [PDF]

open access: yesIndian Journal of Pure and Applied Mathematics, 2015
Ramanujan sums have been studied and generalized by several authors. For example, Nowak studied these sums over quadratic number fields, and Grytczuk defined that on semigroups. In this note, we deduce some properties on sums of generalized Ramanujan sums and give examples on number fields.
openaire   +2 more sources

Elliptic Dedekind-Rademacher Sums and Transformation Formulae of Certain Infinite Series [PDF]

open access: yes, 2007
We give a transformation formula for certain infinite series in which some elliptic Dedekind-Rademacher sums arise. In the course of its proof, we also obtain a transformation formula for elliptic Dedekind-Rademacher sums. When a complex parameter $¥tau$
Machide, Tomoya
core   +1 more source

On SA, CA, and GA numbers [PDF]

open access: yes, 2012
Gronwall's function $G$ is defined for $n>1$ by $G(n)=\frac{\sigma(n)}{n \log\log n}$ where $\sigma(n)$ is the sum of the divisors of $n$. We call an integer $N>1$ a \emph{GA1 number} if $N$ is composite and $G(N) \ge G(N/p)$ for all prime factors $p$ of
Caveney, Geoffrey   +2 more
core   +3 more sources

An identity involving certain Hardy sums and Ramanujan’s sum [PDF]

open access: yesAdvances in Difference Equations, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Weiqiong, Han, Di
openaire   +2 more sources

Asymptotics for rank and crank moments

open access: yes, 2009
Moments of the partition rank and crank statistics have been studied for their connections to combinatorial objects such as Durfee symbols, as well as for their connections to harmonic Maass forms.
Bringmann, K., Mahlburg, K., Rhoades, R.
core   +2 more sources

EXTENSIONS OF EULER-TYPE SUMS AND RAMANUJAN-TYPE SUMS

open access: yesKyushu Journal of Mathematics, 2021
We define a new kind of classical digamma function, and establish its some fundamental identities. Then we apply the formulas obtained, and extend tools developed by Flajolet and Salvy to study more general Euler type sums. The main results of Flajolet and Salvy's paper \cite{FS1998} are the immediate corollaries of main results in this paper ...
openaire   +3 more sources

Moments of averages of generalized Ramanujan sums

open access: yes, 2015
Let $\beta$ be a positive integer. A generalization of the Ramanujan sum due to Cohen is given by \begin{align} c_{q,\beta }(n) := \sum\limits_{{{(h,{q^\beta })}_\beta } = 1} {{e^{2\pi inh/{q^\beta }}}}, \nonumber \end{align} where $h$ ranges over the ...
Robles, Nicolas, Roy, Arindam
core   +1 more source

An extension of Ramanujan’s sum

open access: yesDuke Mathematical Journal, 1949
Verf. definiert eine Verallgemeinerung \(c_q^s(n)\) der Ramanujanschen Summe \(c_q(n)\) durch \(c_q^s(n) = \sum e^{2\pi inh/q^s}\), wobei \(n, q, s\) bestimmte natürliche Zahlen sind und die Summation über alle solchen nichtnegativen Werte von \(h\) zu erstrecken ist, die \(< q^s\) sind und keinen gemeinsamen Teiler \((\ne 1)\), der eine \(s\)-te ...
openaire   +3 more sources

Differential regulation of translational stress responses by herpesvirus ubiquitin deconjugases

open access: yesThe FEBS Journal, EarlyView.
Translating viral mRNAs is challenging due to structural features that may slow translation or induce ribosome stalling. The viral ubiquitin deconjugases encoded by human pathogenic herpesviruses regulate the cellular response to ribosomal stress by inhibiting various branches of the Ribosomal Quality Control (RQC) and activating Ribosomal Stress ...
Jiangnan Liu   +3 more
wiley   +1 more source

Geophysical data denoising using dictionary learning method with Ramanujan sums for oil and minerals exploration

open access: yesArtificial Intelligence in Geosciences
Denoising is an important preprocessing step in seismic exploration that improves the signal-to-noise ratio (SNR) and helps identify oil and minerals. Dictionary learning (DL) is a promising method for noise attenuation.
Lakshmi Kuruguntla   +5 more
doaj   +1 more source

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