Ramanujan series for arithmetical functions
@article{Murty2013RamanujanSF, title={Ramanujan series for arithmetical functions}, author={M. Ram Murty}, journal={Hardy–Ramanujan Journal}, year={2013}, volume={36} }
We give a short survey of old and new results in the theory of Ramanujan expansions for arithmetical functions.
31 Citations
Ramanujan expansions of arithmetic functions of several variables
- Mathematics
- 2017
We generalize certain recent results of Ushiroya concerning Ramanujan expansions of arithmetic functions of two variables. We also show that some properties on expansions of arithmetic functions of…
Partial sums of arithmetical functions with absolutely convergent Ramanujan expansions
- Mathematics
- 2016
For an arithmetical function f with absolutely convergent Ramanujan expansion, we derive an asymptotic formula for the sum ∑n≤Nf(n)${\sum }_{n \le N} f(n)$ with explicit error term. As a corollary we…
On Ramanujan expansions and primes in arithmetic progressions
- Mathematics
- 2022
A celebrated theorem of Delange gives a sufficient condition for an arithmetic function to be the sum of the associated Ramanujan expansion with the coefficients provided by a previous result of Wintner.…
A note on arithmetical functions with absolutely convergent Ramanujan expansions
- Mathematics
- 2016
Arithmetical functions with absolutely convergent Ramanujan expansions have been recently studied in certain contexts, by the present author, Murty and many others. In this article, we aim to weaken…
On partial sums of arithmetical functions of two variables with absolutely convergent Ramanujan expansions
- MathematicsProceedings - Mathematical Sciences
- 2018
In this article, we derive an asymptotic formula for the sums of the form $${\sum }_{n_{1},n_{2}\le N}f(n_1,n_2)$$∑n1,n2≤Nf(n1,n2) with an explicit error term, for any arithmetical function f of two…
On the error term in a Parseval type formula in the theory of Ramanujan expansions II
- Mathematics
- 2015
Twin Primes In Quadratic Arithmetic Progressions
- Mathematics
- 2017
A recent heuristic argument based on basic concepts in spectral analysis showed that the twin prime conjecture and a few other related primes counting problems are valid. A rigorous version of the…
Spectral Methods And Prime Numbers Counting Problems
- Mathematics
- 2015
A recent heuristic argument based on basic concepts in spectral analysis showed that the twin prime conjecture and a few other related primes counting problems are valid. A rigorous version of the…
A smooth shift approach for a Ramanujan expansion
- Mathematics
- 2019
All arithmetical functions $F$ satisfying Ramanujan Conjecture, i.e., $F(n)\ll_{\varepsilon}n^{\varepsilon}$, and with $Q-$smooth divisors, i.e., with Eratosthenes transform $F':=F\ast \mu$ supported…
Partial sums of arithmetical functions with absolutely convergent Ramanujan expansions
- MathematicsProceedings - Mathematical Sciences
- 2016
For an arithmetical function f with absolutely convergent Ramanujan expansion, we derive an asymptotic formula for the sum ∑n≤Nf(n)\documentclass[12pt]{minimal} \usepackage{amsmath}…
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