English

A new sieve for restricted multiset counting

Combinatorics 2021-10-11 v3 Number Theory

Abstract

The Li--Wan sieve is extended to multisets when the underlying set is symmetric. The main ingredient of the proof is the Mobius inversion formula on the poset of partitions of {1,2,,k}\{1,2,\dots,k\} ordered by refinement. As illustrative applications, we investigate the problems of partitions over finite fields and zero-sum multisets over the additive group Z/nZ\mathbb{Z}/n\mathbb{Z}. .

Cite

@article{arxiv.1909.10898,
  title  = {A new sieve for restricted multiset counting},
  author = {Jiyou Li and Xiang Yu},
  journal= {arXiv preprint arXiv:1909.10898},
  year   = {2021}
}

Comments

13 pages, no figures; This is the final published version

R2 v1 2026-06-23T11:24:16.785Z