Bradut Apostol

most citedSome remarks on regular integers modulo

n

5 citations · 5 across the 3 of their papers we have counts for

collaborators

3 papers

math.NT2015

Some properties of a sequence defined with the aid of prime numbers

Brăduţ Apostol, Laurenţiu Panaitopol, Lucian Petrescu +1

For every integer $n \geq 1$ let $a_{n}$ be the smallest positive integer such that $n + a_{n}$ is prime. We investigate the behavior of the sequence $(a_{n})_{n \geq 1}$ , and prove asymptotic…

math.NT2013

Some properties of regular integers modulo n

Bradut Apostol

Denoting by V(n) the number of regular integers $(mod n)$ , we study properties of the sequences $(\frac{V ( n + 1 )}{V ( n )})_{n \geq 1}$ and $\displaystyle…

math.NT2013★ 5 cited

Some remarks on regular integers modulo $n$

Brăduţ Apostol, László Tóth

An integer $k$ is called regular (mod $n$ ) if there exists an integer $x$ such that $k^{2} x \equiv k$ (mod $n$ ). This holds true if and only if $k$ possesses a weak order (mod $n$ ), i…