On minimal asymptotic basis of order g−1

2019 ◽  
Vol 30 (1) ◽  
pp. 128-135 ◽  
Author(s):  
Cui-Fang Sun
Keyword(s):  
1984 ◽  
Vol 17 (24) ◽  
pp. L891-L895 ◽  
Author(s):  
R K Nesbet ◽  
C J Noble ◽  
L A Morgan ◽  
C A Weatherford

2018 ◽  
Vol 97 (3) ◽  
pp. 363-366
Author(s):  
WENHUI WANG ◽  
MIN TANG

Let ${\mathcal{A}}=\{a_{1}<a_{2}<\cdots \,\}$ be a set of nonnegative integers. Put $D({\mathcal{A}})=\gcd \{a_{k+1}-a_{k}:k=1,2,\ldots \}$. The set ${\mathcal{A}}$ is an asymptotic basis if there exists $h$ such that every sufficiently large integer is a sum of at most $h$ (not necessarily distinct) elements of ${\mathcal{A}}$. We prove that if the difference of consecutive integers of ${\mathcal{A}}$ is bounded, then ${\mathcal{A}}$ is an asymptotic basis if and only if there exists an integer $a\in {\mathcal{A}}$ such that $(a,D({\mathcal{A}}))=1$.


2011 ◽  
Vol 84 (1) ◽  
pp. 40-43 ◽  
Author(s):  
MIN TANG

AbstractA set A⊆ℤ is called an asymptotic basis of ℤ if all but finitely many integers can be represented as a sum of two elements of A. Let A be an asymptotic basis of integers with prescribed representation function, then how dense A can be? In this paper, we prove that there exist a real number c>0 and an asymptotic basis A with prescribed representation function such that $A(-x,x)\geq c\sqrt {x}$ for infinitely many positive integers x.


2016 ◽  
Vol 83 ◽  
pp. 05003
Author(s):  
F. Boumediene ◽  
E.M. Daya ◽  
J.M. Cadou ◽  
L. Duigou

2004 ◽  
Vol 2004 (30) ◽  
pp. 1589-1597 ◽  
Author(s):  
Melvyn B. Nathanson

A subset of an abelian semigroup is called an asymptotic basis for the semigroup if every element of the semigroup with at most finitely many exceptions can be represented as the sum of two distinct elements of the basis. The representation function of the basis counts the number of representations of an element of the semigroup as the sum of two distinct elements of the basis. Suppose there is given function from the semigroup into the set of nonnegative integers together with infinity such that this function has only finitely many zeros. It is proved that for a large class of countably infinite abelian semigroups, there exists a basis whose representation function is exactly equal to the given function for every element in the semigroup.


2019 ◽  
Vol 15 (02) ◽  
pp. 389-406 ◽  
Author(s):  
Cui-Fang Sun ◽  
Tian-Tian Tao

Let [Formula: see text] be the set of all nonnegative integers. Let [Formula: see text] be a subset of [Formula: see text] and [Formula: see text] be a nonempty subset of [Formula: see text]. Denote by [Formula: see text] the set of all finite, nonempty subsets of [Formula: see text]. For integer [Formula: see text], let [Formula: see text] be the set of all numbers of the form [Formula: see text], where [Formula: see text] and [Formula: see text]. Let [Formula: see text] be any integer. For [Formula: see text], let [Formula: see text]. In this paper, we show that for any [Formula: see text], the set [Formula: see text] is a minimal asymptotic basis of order [Formula: see text]. We also prove that for any [Formula: see text] and [Formula: see text], the set [Formula: see text] is a minimal asymptotic basis of order [Formula: see text].


2016 ◽  
Vol 95 (1) ◽  
pp. 1-4
Author(s):  
DENG-RONG LING
Keyword(s):  

Let $A$ be a subset of $\mathbb{N}$, the set of all nonnegative integers. For an integer $h\geq 2$, let $hA$ be the set of all sums of $h$ elements of $A$. The set $A$ is called an asymptotic basis of order $h$ if $hA$ contains all sufficiently large integers. Otherwise, $A$ is called an asymptotic nonbasis of order $h$. An asymptotic nonbasis $A$ of order $h$ is called a maximal asymptotic nonbasis of order $h$ if $A\cup \{a\}$ is an asymptotic basis of order $h$ for every $a\notin A$. In this paper, we construct a sequence of asymptotic nonbases of order $h$ for each $h\geq 2$, each of which is not a subset of a maximal asymptotic nonbasis of order $h$.


1970 ◽  
Vol 156 (2) ◽  
pp. 365-384 ◽  
Author(s):  
Philippe Quentin ◽  
Régis Babinet
Keyword(s):  

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