English

Generation of summand absorbing submodules

Rings and Algebras 2019-01-14 v3

Abstract

An RR-module VV over a semiring RR lacks zero sums (LZS) if x+y=0    x=y=0 x +y = 0 \; \Rightarrow \; x = y = 0. More generally, asubmodule WW of VV is "summand absorbing", if x,yV: x+yW    xW,  yW. \forall \, x, y \in V: \ x + y \in W \; \Rightarrow \; x \in W, \; y \in W. These relate to tropical algebra and modules over idempotent semirings, as well as modules over semirings of sums of squares. In previous work, we have explored the lattice of summand absorbing submodules of a given LZS module, especially those that are finitely generated, in terms of the lattice-theoretic Krull dimension. In this note we describe their explicit generation.

Keywords

Cite

@article{arxiv.1705.10089,
  title  = {Generation of summand absorbing submodules},
  author = {Zur Izhakian and Manfred Knebusch and Louis Rowen},
  journal= {arXiv preprint arXiv:1705.10089},
  year   = {2019}
}
R2 v1 2026-06-22T20:01:57.603Z