arXiv subjects

János T. Tóth

Publications and source records attributed to János T. Tóth.

3 recordsLinked to original sources

arXiv2022

Characteristics of distributions of sets and their $(R)$- and $(N)$-denseness

Let $0\leq q\leq1$ and $\mathbb{N}$ denotes the set of all positive integers. In this paper we will deal with it too the family $\mathcal{U}(x^q)$ of all regularly distributed set $X \subset \mathbb{N}$ whose ratio block sequence is asymptotically distributed with distribution function $g(x) = x^q;\ x \in(0,1]$, and we will show that the regular distributed set, regular sequences, regular variation at infinity are equivalent notations. In this paper also we discuss the relation ship between notations as (N)-denseness, directions sets, generalized ratio sets, dispersion of sequence and exponent of convergence.

math.NT↗

arXiv2022

On distribution of subsequences of primes having prime indices with respect to the $(R)$-denseness and convergence exponent

Denote by $\mathbb{N}$ and $\mathbb{P}$ the set of all positive integers and prime numbers, respectively. Let $\mathbb{P}=\{p_1<p_2<\dots <p_n<\dots\}$, where $p_n$ is the $n$-th prime number. For $k\in\mathbb{N}$ we recursively define subsequences $(p^{(k)}_n)_{n=1}^{+\infty}$ of the sequence $(p_n)_{n=1}^{+\infty}$ in the following way: let $p_n^{(1)}=p_n$ and $p_n^{(k+1)}=p_{p_n^{(k)}}$. In this paper we study and describe some interesting properties of the sets $\mathbb{P}_k=\{p_1^{(k)}<p_2^{(k)}<\dots<p_n^{(k)}<\dots\}$, $\mathbb{P}_n^{\mathrm{T}}=\{p_n^{(1)}<p_n^{(2)}<\dots<p_n^{(k)}<\dots\}$ and $\text{Diag}\mathbb{P}=\{p^{(1)}_1<p^{(2)}_2<\dots <p^{(k)}_k<\dots\}$ and their elements, for $k,n\in\mathbb{N}$. Especially, we check whether these sets have dense sets of ratios in $\mathbb{R}_+$. Moreover, we compute their exponents of convergence and asymptotics of their counting functions.

math.NT↗

arXiv2020

On $\mathcal I(<q)$- and $\mathcal I(\leq q)$-convergence of arithmetic functions

Let $\mathbb N$ be the set of positive integers, and denote by $λ(A)=\inf\{t>0:\sum_{a\in A} a^{-t}<\infty\}$ the convergence exponent of $A\subset\mathbb N$. For $0<q\le 1$, $0\le q\le 1$, respectively, the admissible ideals $\mathcal I(<q)$, $\mathcal I(\leq q)$ of all subsets $A\subset \mathbb N$ with $λ(A)<q$, $λ(A)\le q$, respectively, satisfy $\mathcal I(<q)\subsetneq\mathcal I_c^{(q)}\subsetneq \mathcal I(\leq q)$, where $\mathcal I_c^{(q)}=\{A\subset\mathbb N: \sum_{a\in A}a^{-q}<\infty\}$. In this note we sharpen the results of Baláz, Gogola and Visnyai from [2], and of others papers, concerning characterizations of $\mathcal I_c^{(q)}$-convergence of various arithmetic functions in terms of $q$. This is achieved by utilizing $\mathcal I(<q)$- and $\mathcal I(\leq q)$-convergence, for which new methods and criteria are developed.

math.NT↗