English

Linear forms and complementing sets of integers

Number Theory 2021-12-30 v1 Combinatorics

Abstract

Let φ(x1,,xh,y)=u1x1++uhxh+vy\varphi(x_1,\ldots,x_h,y) = u_1x_1 + \cdots + u_hx_h+vy be a linear form with nonzero integer coefficients u1,,uh,v.u_1,\ldots, u_h, v. Let A=(A1,,Ah)\mathcal{A} = (A_1,\ldots, A_h) be an hh-tuple of finite sets of integers and let BB be an infinite set of integers. Define the representation function associated to the form φ\varphi and the sets \mca\ and BB as follows: RA,B(φ)(n)=card({(a1,,ah,b)A1××Ah×B:φ(a1,,ah,b)=n}). R^{(\varphi)}_{\mathcal{A},B}(n) = \text{card}\left( \left\{ (a_1,\ldots, a_h,b) \in A_1 \times \cdots \times A_h \times B: \varphi(a_1, \ldots , a_h,b ) = n \right\} \right). If this representation function is constant, then the set BB is periodic and the period of BB will be bounded in terms of the diameter of the finite set {φ(a1,,ah,0):(a1,,ah)A1××Ah}.\{ \varphi(a_1,\ldots,a_h,0): (a_1,\ldots, a_h) \in A_1 \times \cdots \times A_h\}.

Keywords

Cite

@article{arxiv.0801.0001,
  title  = {Linear forms and complementing sets of integers},
  author = {Melvyn B. Nathanson},
  journal= {arXiv preprint arXiv:0801.0001},
  year   = {2021}
}

Comments

10 pages

R2 v1 2026-06-21T09:58:09.448Z