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For questions related to 'elementary' proofs in a technical sense, which has nothing to do with the difficulty of the argument or result. A typical example would be 'elementary' proofs of the Prime Number Theorem, which avoid complex analysis. The tag is however not limited to this particular notion of 'elementary.'

1 vote
1 answer
197 views

Effective estimate for this infinite product over Hecke eigenvalues

Let $f$ be a primitive form of an even weight $k\geq 2$ for the full modular group $SL_2(Z)$ and let $\lambda_f(n)$ be the $n$-th normalized Fourier coefficient of $f.$ Can someone provide me with an …
Khadija Mbarki's user avatar
1 vote
0 answers
101 views

Digits of sums of two integers [closed]

Let $q$ be a non-negative integer $\geq 2.$ For a non-negative integer $n$ It is known that there exixts a unique sequence of integer $0\leq n_k \leq q-1$ such that $$n=\sum_{k=0}^{+\infty} n_k q^k.$$ …
Khadija Mbarki's user avatar
2 votes
0 answers
65 views

Can this function satisfy Song conditions?

Let $r_{s,k}(n)$ be the number of representation of a naturel number $l$ as a sum of $s$ positive $k$-th powers. Joung Min Song introduced some conditions to study asymtotic behavior of some positive …
Khadija Mbarki's user avatar
1 vote
2 answers
286 views

Implicit constant in Tenenbaum's result

In his famous book 'Introduction to Analytic and Probabilistic Number Theory', Gérald Tenenbaum established the following result (Theorem III.3.5): Let $g$ be a positive multiplicative function and l …
Khadija Mbarki's user avatar
2 votes
1 answer
245 views

Sign changes of a sequence

Let $f$ be an arithmetical function. Suppose that $f(n)>0$ if $n$ is in an integer set $A$ and that $f(n)<0$ for another integer set $B.$ Is there a result from number theory or an elementary result t …
Khadija Mbarki's user avatar
1 vote
0 answers
118 views

Carry operations when adding two numbers [closed]

Let $x$ be a large positive real number and let $q\leq 2$ be a positive integer. It is known that for a positive integer $n,$ there exists a unique sequence $\left\{0\leq n_k\leq q-1\right\}_{k\geq 0} …
Khadija Mbarki's user avatar
3 votes
1 answer
153 views

Arithmetical function comparable to sine function [closed]

I was wondering if there exists or can we construct (using known arithmetic functions) an arithmetical function that has the same behaviour of the function sine or comparable to it (I mean that oscila …
Khadija Mbarki's user avatar
1 vote
0 answers
104 views

Some property of the greatest prime factor

Let $n$ be a positive integer $\geq 2$ et denote by $ P^{+}(n)$ the greatest prime factor of $n$ my question is as follows: If $a$ and $b$ are two numbers, is there any method to express or to bound $ …
Khadija Mbarki's user avatar
6 votes
1 answer
738 views

Beauty of some numbers discovered by Ramanujan

I am a graduate PhD student and my topic is analytic number theory. I am also a mathematics teacher. I am planning to give a course to pupils in high school that motivates them to study arithmetic and …
Khadija Mbarki's user avatar