English

Bridging Meadows and Sheaves

Commutative Algebra 2024-10-10 v1 Logic Rings and Algebras

Abstract

We bridge sheaves of rings over a topological space with common meadows (algebraic structures where the inverse for multiplication is a total operation). More specifically, we show that the subclass of pre-meadows with a\mathbf{a}, coming from the lattice of open sets of a topological space XX, and presheaves over XX are the same structure. Furthermore, we provide a construction that, given a sheaf of rings F\mathcal{F} on XX produces a common meadow as a disjoint union of elements of the form F(U)\mathcal{F}(U) indexed over the open subsets of XX. We also establish a correspondence between the process of going from a presheaf to a sheaf (called sheafification) and the process of going from a pre-meadow with a\mathbf{a} to a common meadow.

Keywords

Cite

@article{arxiv.2410.05921,
  title  = {Bridging Meadows and Sheaves},
  author = {João Dias and Bruno Dinis and Pedro Macias Marques},
  journal= {arXiv preprint arXiv:2410.05921},
  year   = {2024}
}
R2 v1 2026-06-28T19:12:48.592Z