English

Countable quasicontinuous domains are quasialgebraic

General Topology 2025-10-31 v1

Abstract

We prove that every quasicontinuous domain that fails to be quasialgebraic admits the unit interval [0, 1] as its monotone Lawson-continuous image. As a result, every countable quasicontinuous domain is quasialgebraic.

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Cite

@article{arxiv.2510.26522,
  title  = {Countable quasicontinuous domains are quasialgebraic},
  author = {Xiaoquan Xu},
  journal= {arXiv preprint arXiv:2510.26522},
  year   = {2025}
}

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R2 v1 2026-07-01T07:13:53.744Z