English

Higher Separation Axioms for $X$-top Lattices Applications to Commutative (Semi)rings

Rings and Algebras 2026-01-14 v1 Commutative Algebra General Topology

Abstract

We study several separation axioms for XX-top-lattices (i.e. a lattice LL for which a given subset XL\{1}X\subseteq L\backslash \{1\} admits a \emph{% Zariski-like topology}). Such spaces are T0T_{0} and usually far away from being T2.T_{2}. We provide sufficient/necessary conditions for an XX-top lattice so that XX is T2,T_{2}, \emph{regular} (T3T_{3}), \emph{completely regula}r (T312T_{3\frac{1}{2}}), \emph{normal}, \emph{completely normal} or \emph{perfectly normal} (T6T_{6}). We apply our results mainly to the spectrum of prime (resp. maximal, minimal) ideals of a commutative (semi)ring. We illustrate our results with several examples/counterexamples.

Keywords

Cite

@article{arxiv.2601.08032,
  title  = {Higher Separation Axioms for $X$-top Lattices Applications to Commutative (Semi)rings},
  author = {Jawad Abuhlail and Abdulmushin Alfaraj},
  journal= {arXiv preprint arXiv:2601.08032},
  year   = {2026}
}