English

Lattices which can be represented as lattices of intervals

General Mathematics 2026-03-23 v3 Representation Theory

Abstract

We investigate the representation of lattices as sublattices of the lattice of all convex subsets (intervals) of a linearly ordered set (X,)(X,\le). We introduce the purely lattice-theoretic notion of a \textit{loc-lattice} and prove that every loc-lattice is representable as a lattice of intervals. Furthermore, we provide the complete, unabridged construction for the general representation theorem, establishing that a well-separated lattice is faithfully representable as a lattice of intervals if and only if it is a loc-lattice. Finally, we apply these results to general topology, obtaining novel algebraic characterizations for the bases of weakly orderable and completely orderable topological spaces.

Cite

@article{arxiv.math/0609114,
  title  = {Lattices which can be represented as lattices of intervals},
  author = {P. Douka and V. Felouzis},
  journal= {arXiv preprint arXiv:math/0609114},
  year   = {2026}
}

Comments

26 pages, 18 figures